ELVA concept is multi-purpose, resulting in to a design which enables maximum flexibility in automation.
ELVA stands for Extra Low Voltage Actuation. This concept can be used with robotic loading or manual loading of workpieces to machining center.

 The design delivers benefits like

• Easy plug and play automation
• Radically shorter production ramp-up times than with traditional clamping automation
• Need for special expertise is avoided
• Safe and clean energy supply with economical coupling and decoupling

More information about automation 

OK-VISE Automated Clamping principles

OK-VISE MULTI-RAIL RM System is the best-selling generic purpose system of OK-VISE. Compared to a traditional machine vise, the Multi-Rail system offers the following benefits:

• Using the components of the system, even the most challenging workpiece types can be machined
• All sides of a workpiece can be machined with two setups
• Multiple workpieces can be clamped simultaneously
• Workpiece will be safely fixtured in all conditions
• It is also possible to clamp very large workpieces
• Multi-Rail RM system modules are the most accurate multiple clamping modules on the market, most of them giving 10 micron accuracy

Maximum clamping force that can be applied to the base rail is 6 metric tons (60 kN)
More info can be found in Multi-Rail RM System.

Catalogue C07092021 contains the best selling units.

This models are good for clamping rods, pins and disks. The are two V-slots, one "vertically" (V) and one "horizontally" (H).

The “blank original system” is the most traditional way of using OK-VISE clamping method, where, in addition to OK-VISE clamps and bolts, the pockets or grooves are machined by the client to his specific needs and requirements.

Today clients are increasingly using Fixturing Concept modules, which offers an ease of design and reusability of modules.

However, our blank original system still remains a totally valid way of manufacturing optimized fixtures.

The worlds first electrical clamping system based on low-profile clamps is here !

OK-VISE has designed multi-purpose electrical clamping system. The resulting design delivers maximum flexibility in electrical clamping automation.

• Easy plug and play automation
• Radically shorter production ramp-up times than with traditional clamping automation
• Need for special expertise is avoided
• Safe and clean energy supply with economical coupling and decoupling

System launch has been at ELMIA Machine Tool Exhibition in May 2022 ( Jönköping, Sweden ).
Pilots projects are running, and next trade show for ELVA will be in Tampere, Finland 29-30 Nov and 1st Dec 2022

More information about the system

OK-VISE’s GENERIC PURPOSE workholding systems adapt easily to various workpiece sizes, and the components of these systems can be reused and reconfigured easily for a variety of applications and workpieces.

When considering if you should build a dedicated fixture or a fixture using generic fixturing components read this.

Our Blank system is a system for building DEDICATED FIXTURING (workpiece-specific fixturing). Normally only one setup of one workpiece can be clamped with these fixtures.

When considering if you should build a dedicated fixture or a fixture using generic fixturing components read this.

OK-VISE low-profile clamps come in four different sizes (A, B, D, F) for metric bolts (M5, M8, M12, M16), while the D-Series Inch Model is made for a half-inch bolt.

In B-series clamp the maximum clamping force is 25 kN which corresponds the force in a typical machine vise!
It is the most popular size today, followed by D-size which may be easier to handle manually and also the more popular in automated solutions.

The manual clamping is normally applied using an allen key with torque guage, however a power tool can also be utilised for convenience.

When actuated with a bolt the models with ground surfaces have a high accuracy response between torque and the clamp force

The precision-ground surfaces of OK-VISE Low-profile clamps quarantee consistantly accutate clamping force.

We have attached the torque-force graph to enable the most suitable clamping force & torque selection.

x = torque ( Nm), y = force ( kN )  

In addition to above mentioned clamp sizes and various jaw types, OK-VISE clamp superior designs differ from its competition in a number of important ways 

Pull-down clamps

Where standard model single-wedge clamps always keep workpieces steadily in place, not allowing
upward or downward movement, pull-down clamps also generate pull-down action and press workpieces towards the fixture base.

Stainless steel model

Originally designed for EDM applications, stainless steel clamp is used today in many harsh environments like welding appliations

Economy models (-O)

Some of our customers prefer our economy-series, which works sufficiently well in applications where absolute repeatability, high clamp accuracy and extremely high pressing forces are not necessary.
In economy models, only the bottom of the jaw is ground.
Our smallest series is only available as the economy model (AK2-VT-SO).

D-series inch models (-VTI, -WTI)

You can fasten the clamps with bolts of both metric and imperial dimensions for A-, B- and F-size clamps.

For D-size clamps, there are separate models to be used with an imperial half-inch bolt.
The center holes of inch-series wedges are wider in order to fit the half-inch socket head screw.

Code	Dim.	STEP
RMP-M42

A parallel plate which is 42 mm high (44 mm wide, 12 mm long).
On one side there are two magnets, so this parallel plate can be easily fastened onto a fixturing base such as Multi-Rail.

This version is machinable.

Magnet parallel RMP-M42

Code	Dim.	STEP (3D)
RMS-R64

This stopper type has a serrated contact area on both sides of the stop module. The contact area is nitrided.

The width of the stopper is 64 mm, so this is optimal for first operation of workpieces 66...88 mm wide.

RMS-R64

Files to download
Dimensions
STEP (3D)

This serrated riser block lifts up RM stopper 28 mm, RM serration is both at the bottom and the top of the block. Additional RM T-nut and longer bolt are included, so stoppers like RMS-S, RMS-R etc. will work directly on this riser block. You can use the bolt and T-nut form the original stopper in the "front" hole of the riser block.

Additionally, quick setup plate PBQ-S1 and any B-series clamp can be used with the base riser unit.

RMRS-28

Code	Dim.	STEP
RMRC-28

This riser block lifts up RM clamp 28 mm,  This is designed to be used with D-series clamps, and a longer M12 bolt and T-nut are included.

Can also be used as a rotation stop module

.RMRC-28

Code	Dim.	STEP (3D)
RMS-S64

RMS-S64This stopper type has smooth jaws, otherwise like RMS-R64

Clamp modules

Stop modules

 Side guides

 Just like in all systems of OK-VISE Fixturing Concept, Multi-Rail RM is a modular system, including following functions:

Clamp modules, Stop modules, Riser blocks, Side guides

All these are installed on base rail units.
In addition to this, we offer fine tuning machining options and for installation on various platforms installation and adapter sets are available.

There are several machining options, for example if base rail needs to positioned accurately on T-slots slot keys. 

 Module names

Please study also HOW TO USE videos for more detailed use instructions

The following threaded inserts are used when special durability in the thread is essential.
Especially with aluminum platforms threaded inserts are recommended.

Some inserts are straight – one thread inside and one outside – whereas some have a flange outside to give extra support. Please notice that T-nuts can also be used for the same purpose in some installations.

In the front straight models INM-12-8, INM-18-12, INM-18-12H, INM-22-16
Heights of these four types are 12.5, 10, 16 and 20 mm
In addiition to these there is INM-22-16S which is 14 mm in height.

In back models with flange: INM-16-10, GS-T1-M ( both non-stock items )

This is a locator bushing used in many types of platform where OK-VISE components are employed.
See also Threads and positioning holes on platforms

This is an option which is typically used to fasten components to a base (typically a T-slot table) in cases where the component cannot be bolted directly.

ICI-12 For Multi-Rail RM ( 2 pcs )
IC1-12-C For Combo-Rail ( 2 pcs )

Both of these can be used with M12 and 1/2" bolts.

In the picture above the clamps have a hole for M16 bolts ( ICI-16 )

Clamping force verification can now be done wirelessly. This digital concept is designed to be an integral part of any system where verifying clamping force is essential.

In the Multi-Rail RM system we have stopper modules which have built-in force sensors.
The sensor is connected to the measuring unit, which sends the measuring data by radio to the display. The display units can easily be set up with the min and max forces to trigger an alarm.

The European 868 MHz radio-technology that we use is long range technology, thus enabling transmission distances of up to 50 meters. This guarantees error-free transmission even in most harsh machining environments.

 Basic components of the system are

• A stopper module with DIGIFORCE sensor option
• Wireless DIGIFORCE measuring unit
• Wireless DIGIFORCE display
• SCADA System ( optional, to collect history data )

A Clamp module with clamping force verification

Files to download
Dimensions
STEP (3D)

OK-VISE’s novel DOTFORCE concept is a part of the Multi-Rail RM system and is based on a simple visual red dot in the clamp module. The red dot disappears when the clamping force is high enough.
The parts of the module are

• DK2-VTI wedge
• DOTFORCE bolt
• UDP-RM1 Plate
• T-nut
• Smooth jaws*

Please note that the jaws can be easily changed to any other combination.

Files to download
Dimensions
STEP (3D)

A parallel plate 5x15 mm in size with a width of 44 mm.
On one side there are two magnets, so this parallel plate can be easily fastened on a stopper (height 15 mm) or on a fixturing base such as Multi-Rail (height is then 5 mm).

This version is ground.

A magnet block with M6 thread. This is originally designed as an option for side guide RMG-1.

Files to download
Dimensions
STEP (3D)

A combination of side guide RMG-1 and magnet M-1. This side guide can be moved rapidly from one place to another.
Using this type of side guide users can adjust each side guide for a specific product and keep the guide ready for the next production batch.

Files to download
Dimensions
STEP (3D)

This “speed plate” option for B-size.
It replaces the one stopper module, and works with all B-size clamps
Please note this module holds a clamping force in one direction only.

Files to download
Dimensions
STEP (3D)

This “speed plate” option enables users of Multi-Rail RM to move clamp modules on the rail into a different position in just a few seconds.
It also replaces one stopper module, and works with RMC-DS and RMC-DR.
Please notice this module holds clamping force in one direction only.
Longer bolt DIN912 M12 X 30 is recommended

Files to download
Dimensions
STEP (3D)

This plate is used with D-series clamps to prevent the clamp rotating on the rail. It will lift up the clamp 1 mm ( =plate thickness) from the rail.

Applications

Files to download
Dimensions
STEP (3D)

This plate is used with D-series clamps to prevent the clamp rotating on the rail.

Files to download
Dimensions
STEP (3D)

RMS-G4S

RMS-G4S is a grip model, one jaw possessing a knife-edge grip pattern while the other jaw is smooth. The jaws are nitrided.

RMS-G4 is a grip model, where both jaws posses a knife-edge grip pattern. The jaws are nitrided.

Locking of the sub-plates in this system is done by using the OK-LOCK element. In addition to OK-VISE clamping systems, also old-school traditional vises and other fixturing elements can be used.
One possibility is to bolt OK-LOCK spigots directly to the workpiece, enabling easy access from all directions.

RPS-L3X2

The RPS-L3X2 model is equipped with 3 pieces of OK-LOCK modules on both sides of the block. Pneumatic release by plug is a typical practice, robot-operated release is also possible.

The following codes can be used for ordering jaws, wedges, springs and side plates.

Jaws  

Wedges 

Springs

Side plates

COMBO-RAIL IN THE MACHINE VISE MODE

Ergonomics using Combo-Rail in machine vise mode (= good)	Ergonomics using old-school machine vises (= poor)

Examples of RPS System L installations

A unit with 3 pcs of OK-LOCK modules on both sides of the block. Pneumatic release by a plug, optionally robot release possible

Examples of RPS Systems

sssss

The workpieces will he held by force or form closure. Depending of the workpiece form, material and parameters of machining process, always on optimal jaw type can be chosen.

+3 stands for machinable model in B-series, +5 in D-series
Self-aligning jaws available in B- and D-series only
G = knive edge, G1 = one hard steel pin, G2 = two pins, G3 = 3 pins

Please notice, that in clamps (as well as in most stopper modules) two different jaw types can be combined.
read more

There are plenty of accessories available for Low-profile clamps, like bolts, protection plates and components to prevent the clamp from rotating while clamping.
Also, components of the clamp are available as spare parts.

In addition to this, please study also the modules in the systems for Dedicated Fixturing and Generic Purpose Systems, not to forget Generic components that can be used with most of the systems.

Following clamp types have two jaws which are both same type (exept self-aligning models).

Normally the end of the code is describing the jaw type, for example -T stands for a model with two additional pieces.
Self-aligning models (-B) have two types of jaws, smooth and serrated. 

You can order also low-profile clamps where jaws are not the same type - even if they might not be standard products.
If both jaws of the clamp are the same, typically there is one letter in the end of the code (like DK2-VT-T has two addtional piece jaws).
If jaws are different, there are in most cases two letters in the end of the code (like BK2-VT-SR has one smooth jaw and one serrated).
Same way clamps BK2-VT-BT and DK2-VT-BT posses one self-aligning jaw ("B") and one jaw for addtional piece ("T")

*1: +3 stands for machinable model in B-series, +5 in D-series
*2: Self-aligning jaws available in B- and D-series only
*3: G = knive edge, G1 = one hard steel pin, G2 = two pins, G3 = 3 pins

Files to download
Dimensions
STEP (3D)

This clamp module features a B-series clamp with two serrated jaws.

Files to download
Dimensions
STEP (3D)

Side guide offset from the side of the rail is from -5 mm to +30 mm.

Files to download
Dimensions
STEP (3D)

The BK2-VT-B clamp has a self-adjustable steel ball inserted into the clamp jaw. The steel ball is equipped with torsion protection, allowing the ball to self-adjust up to 9 degrees. This makes clamping of irregular shaped parts and castings more flexible.

Applications

As in every OK-VISE Fixturing Concept system, the basic modules in the Blank System are clamp, stopper, side guide and riser block modules.

To resist the clamping and machining forces, a pocket should be machined to the blank plate. Pictures of the pockets are available in the installation instruction.

Code	Dim.	STEP
GCS-DR1
GCS-DR2
GCS-DS1
GCS-DS2
GCS-DS3

In most cases, code format is GCS-Djn, where j corresponds to a jaw type (serrated, smooth, diamond). Also other jaw types are available.

GCS-DS3 GCS-DR2

• Dx1 modules are the shortest, with a jaw movement of max. 35 mm
• Dx2 possess a jaw movement of max. 85 mm
• Dx3 possess a jaw movement of max. 35 mm

While Dx1 and Dx2 modules can be installed in 4 directions on a standard 50x50 M12 platform (0,90,180 or 270 degrees) Dx3 modules can be installed in more positions such as 15,65 and 75 degrees in addition to previously mentioned.

Code	Dim.	STEP
GS-SA1
GS-SA2
GS-RA1

Code format is GS-jAn, where j corresponds to a jaw type and n is a base type.

GS-SA1 GS-RA1 GS-SA1R GS-SA2

• xA1 modules are the shortest, with a jaw movement of max. 60 mm
• xA2 possess a jaw movement of max. 110 mm
• xA3 possess a jaw movement of max. 60 mm

While xA1 and xA2 modules can be installed in 4 directions on a standard 50x50 M12 platform (0,90,180 or 270 degrees) xA3 modules can be installed in more positions such as 27,45 and 63 degrees in addition to previously mentioned.

Riser block tabs that posses a M12 thread longer than 18 mm:s, can be also used directly on standard M12 grid platforms.

Riser blocks used in the Grid System can be built from different standard components. Riser blocks can be placed easily in almost any position on the grid platform. Height can be adjusted by combining suitable riser modules, adjusting the height with the M12 thread and finally machining if needed.

Please specify your needs and we will recommend you a suitable set!

Some side guides for the Grid System can be built using the same components used for the riser blocks.

Additionally, there are modules to adapt spring guides (in the photo) to the Grid System side guide.

Code	Dim.	STEP
GS-SF1
GS-SF2

Fixed stopper modules (GS-) are available with smooth jaws.

GS-SF1 GS-SF2

Code	Dim.	STEP
GCD-DR1
GCD-DS1

In most cases, code format is GCD-sjn, where j corresponds to a jaw type (serrated, smooth, diamond). Also other jaw types are available.

GCD-DR1

As in every OK-VISE Fixturing Concept system, the basic modules in the Grid System are clamp, stopper, side guide and riser block modules. There are fixed and adjustable stoppers in the system, additionally single directional clamp modules share the same base module than adjustable stoppers.

Compared to fixed modules in the Grid system, with adjustable modules the place of the jaw can be moved in 2.5 mm steps.
If the difference in workpiece sizes is larger than the total movement of the jaw, then the  module will be moved 50 mm to the next positioning hole location on the grid platform

In addition to the basic modules above, the generic components complementing our product range can be used in the Blank Fixturing System as well as in other OK-VISE fixturing systems.

• Adjustable stopper modules GS modules
• Fixed stopper modules (GS-)
• Spring guides

Code	Dim.	STEP
GP-1

GP-1

Code	Dimensions	STEP
PB-1
PD-1
PF-1

Especially in automated clamping with vertical machining centers, some extra protection against chips may be needed.
OK-VISE protection plates for D-size (PD-1), B-size (PB-1) and F-size (PF-1) clamps.

The Multi-Rail dimensions can be also modified. OK.VISE has predefined set of ready machining options, which are available on request. Usually, ordering of the special machining option slightly increases delivery time.

In the picture on the right M-N1 stands for machining of two sides with max 4x9 mm notch.
Then, both stopper widht and the widht of the upper part of the rail base will be 36 mm.

This set of threads (4 pcs of M6) is typically used with Multi-Rail RM stoppers, in this example case with RMS-S
Then, for example side RMG-1 can be installed to the stopper instead of Mult-Rail base.

Code	Dim.	STEP
RM-500+M-T1
RM-600+M-T1

Four slots for keys, where the lower part of the key chosen by the T-slot widht.

Using the slot and keys (not included) the module - typically Multi-Rail base - can be installed parallel or perpendicular to T-slots.

Measures to be defined at order:

• Slot width 18 or 20 mm
• Slot midpoint position

Code	Dim.	STEP
BK2-VT-SG
DK2-VT-SG
BK2-VT-G
DK2-VT-G

This types of clamps posses one or two serrared knife edge jaws.

Types xK2-VT-SG - where x stands for the size have the other jaw smooth, whereas in types xK2-VT-G both jaws are same type.

This type of clamps posses two jaws with hard tungsten carbide coating : AK2-VT-DO, BK-VT-D, DK2-VT-D, DK2-VTI-D and FK2-VT-D.
When no clamping marks are allowed in the workpiece but still high friction is needed, these clamps are an excellent choise.
Or when thin-walled workpieces are being machined, these jaws create required holding force with less clampforce, preventing distorsions of the workpiece while clamping.

Files to download
Dimensions
STEP (3D)

Load assistant RMGS-4x2 holds the workpiece on the rail while operator is loading the workpieces. This saves time and muscles. Parallels with min. 8 mm height are recommended to be used with this unit (like RMP-1H8 in the photo right)

4 pcs of metal pins posses 100 N spring power each.

Applications

Assembly tools are also available. For example, SP-AT-16 is used for the D=16 springs.

Code	STEP
BE-12-18
BE-16-25
SP-12-n
SP-16-n

Code	Dimensions	STEP
HA-VD1

• Single acting cylinder with spring return
• Cylinder stroke 8  mm creates 2 x 3,3 mm clamp jaw movement
• Height 67 mm
• JIC 1/4 connection
• Recommendation 350 bar max

Installation principle

Fixture keys are used to position components on T-slot tables or blank platforms.
The other half ( with "widht2" ) goes into OK-VISE modules, and is kept standard.
Normally widht2 is 18 mm

If keys are to be used in Mult-Rail base rails, then a machining option M-T1 is available, which is 2 + 2 pockets like shown in the photo.

Files to download
Dimensions
STEP (3D)
STEP (3D) DETAILS

This is the longest standard rail produced by OK-VISE. Special length rails (also longer than RM-700) are also available.

Files to download
Dimensions
STEP (3D)
STEP (3D) DETAILS

This rail length is very popular on tooling blocks.

Files to download
Dimensions
STEP (3D)
STEP (3D) DETAILS

This is the shortest rail, with two 12 mm H7 positioning holes.

Compared to similar systems on the market, the OK-VISE Multi-Rail base is the most stable due to its steep serration profile. It has been designed for D- and B-series clamp modules and can withstand up to 4 tonnes clamping force. The pitch of the serration is 2,5 mm, and the size of the RM profile is 44 x 50 mm.
The accuracy of the serration dimensions , like distance from every serration to the positioning hole is ± 0.01 mm ( RM-200....RM-700 base rails ). This makes Multi-Rail RM system the most accurarate rail system on the market.

Files to download
Installation on grid platform

On Multi-Rail base rails L=400...700 mm, positioning hole is the second one from the end of each rail. Please note that the end of the rail is different from the start. The numbering of the scale starts from the left.

Files to download
Dimensions
STEP (3D)
STEP (3D) DETAILS

Files to download
Dimensions
STEP (3D)
STEP (3D) DETAILS

A good universal rail for VMC and HMC machining.

Files to download
Dimensions
STEP (3D)
STEP (3D) DETAILS

This length rail is most commonly used to replace old-fashioned machine vises.

Code	Dim.	STEP
RMS-G
RMS-GS

RMS-G is a grip model with two HSS pins that penetrate into the workpiece, leaving tiny marks on it. The friction is much higher than that of using the standard serrated jaw, against soft steel the friction co-efficient factor is up to 0,8.

Model RMS-GS has one grip jaw and one smooth jaw.

The same jaw types used in clamps are available in the stopper modules:

• Serrated (R)
• Smooth (S)
• Diamond-coated (D)
• Additional piece models (T)
• Grip models (G)
• Self-aligning (B)
• Machinable (M)
• Equipped with vertical V-slot (V)
• Equipped with horizontal V-slot (H)  etc.

Recommended installation torque 50..100 Nm

Please also notice, that several types of threads and notches can be machined to stoppers to help integration with external components (see more: machining options).

Additionally, different stopper sizes are manufactured by OK-VISE.

Files to download
Installation

Like side guides, Multi-Rail RM parallels are used to assist in positioning workpiece on the Multi-Rail. Multi-Rail RM parallels are placed on the rail, thus protecting the rail's serration.

Files to download
Installation

Side guides are designed to assist in positioning the workpiece on the Multi-Rail. The workpiece is pressed sideways (as regards the clamping force) against the guide, either manually or using a spring guide.

All the jaw types, such as serrated (R), smooth (S), diamond-coated (D), additional piece models (T), grip models (G), self-aligning (B), machinable (M), etc., are suitable for the Multi-Rail RM system.

D-size (12 mm or 1/2" bolt) and B-size (M8 or 5/16" bolt) clamps are most commonly used in the Multi-Rail RM system.

There are various clamp modules - RMC-DR, RMC-DS, RMC-DT, RMC-BS. 

In the RMC-ab code format a=size and b=jaw type.

Code	Dim.	STEP
RMC-DS
RMC-DSR

This clamp module features a D-series clamp with two smooth jaws (S).

In the clamp modules RMC-DSx, one jaw is smooth and another jaw is of another type.  For example, in RMC-DSR one jaw is serrated.

Files to download
Dimensions
STEP (3D)

RMP-J1 is equipped with a snap-on spring to speed up assembly process.

Files to download
Dimensions
STEP (3D)

This clamp module features a B-series clamp with two smooth jaws.

This clamp module features a B-series clamp with one smooth (S) and one serrated jaw (R).

Files to download
Dimensions
STEP (3D)

Code	Dim.	STEP
RMC-DT
RMC-DTS
RMC-DTR

The clamp module RMC-TTx features a D-series clamp with two jaws for an additional piece (T). 

In the clamp modules RMC-DTx, one jaw is for additional piece jaw and another one is of another type. For example, in the RMC-DTS one jaw is smooth.

Code	Dim.	STEP
RMS-D
RMS-DS

These stopper modules have at least one jaw which is diamond coated (D). In the RMS-D model both jaws have a diamond coating, while RMS-DS has one jaw that is smooth. 

The accuracy from every serrration to the jaw surface is ± 0.25 mm.

Code	Dim.	STEP
RMS-V
RMS-VS

RMS-VSThis model has a vertical V-shape jaw to hold round-shaped workpieces of various sizes.

The optimal workpiece sizes are given in the Dimension drawings (see Dim. in the table above). Please note that when machining a workpiece with a diameter larger than maximum given in the Dimensions drawings, there is a line contact between the jaw and the workpiece, and the jaw is likely to leave marks on the workpiece surface.

RMS-V has two such jaws, RMS-VS has one smooth jaw (photo).

Code	Dim.	STEP
RMS-H
RMS-HS

RMS-H

This model has a horizontal V-shape jaw to hold small round-shaped workpieces or bars. 

RMS-H has two such jaws. In the RMS-HS module one jaw is smooth and another one - V-shape.

Code	Dim.	STEP
RMS-T
RMS-TS

In this stopper module the same additional pieces can be used as in D-series low-profile clamps. In this stopper module the same additional pieces can be used as in D-series low-profile clamps.

RMS-T has two additional pieces jaws. 
For example RMS-TS is a stop module which has one smooth jaw and one additional piece jaw. 

RMS-TRMS-TS

Below there are the most typical components commonly used with the OK-VISE products.

Code	Dimensions	STEP
RMS-S2

RMS-S2 is more narrow than RMS-S, about the size of a B-series clamp.

RMS-S2

Files to download
Dimensions
STEP (3D)

This stopper type has two round, serrated contact areas which hold both big and small workpieces firmly in the correct position.

 The accuracy from every serrration to the jaw surface is ± 0.25 mm.

RMP-1 is the most common parallel model.

Files to download
Dimensions
STEP (3D)

Files to download
Dimensions
STEP (3D)

This clamp module features a D-series clamp with two serrated jaws.

Files to download
Dimensions
STEP (3D)
STEP (3D) DETAILS

A rail 200 mm in length provides better adjustability than the shortest RM-100 rail.

Code	Dim.	STEP
RMS-M
RMS-MS

RMS-MSThese are machinable stopper models which are especially suitable for machining of complex workpieces, or when extreme accuracy is needed and product-specific jaws are used for machining.

RMS-M has two extended jaws that are machinable. Furthermore, all combinations can be machined because these models are made of the relatively soft material (HRC 30, not hardened or nitrided). In the RMS-MS model, one jaw is of  the "normal" length, and normally it is smooth. For machining purposes this model is slightly bigger in size.

Also many other variants of combinations can be made, so "x" can be =R (serrated), V (vertical slot) etc.