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Multi-Rail RM System modules

The basic components of the Multi-Rail system are a base rail (RM-), clamping modules (RMC-) and stopper modules (RMS-).
To locate and position the workpiece side guides (RMG-) and parallels/riser blocks (RMP-) are used.

Multi-Rail RM clamp modules (RMC-)

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.

RMC overview foto 1 w800

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.

Quick adjustable stopper plate PDQ-S1

Files to download
Dimensionsicon pdf
STEP (3D)

speedplate 1

speedplate anim740

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.

Quick adjustable stopper plate PBQ-S1

Files to download
Dimensionsicon pdf
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.

PBQ S1 400X300PBQ S1 ap1

RMC-DR

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

Files to download
Dimensionsicon pdf
STEP (3D)

RMC DR 2
 

 





RMC-DS

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.

RMC S

 CodeDim. STEP
RMC-DSicon pdf
RMC-DSRicon pdf

 

 

 

 

 

DOTFORCE clamp module RMC-DS-F

A Clamp module with clamping force verification

Files to download
Dimensionsicon pdf
STEP (3D)

rmc ds f dotforce clamp module ani

dotforce ani4

 

 

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.

RMC-DTx

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.

 CodeDim. STEP
RMC-DTicon pdf
RMC-DTSicon pdf
RMC-DTRicon pdf

 

 

 

RMC-BR

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

 

Files to download
Dimensionsicon pdf
STEP (3D)


 

 



RMC-BS

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

RMC BS v2

Files to download
Dimensionsicon pdf
STEP (3D)


 

 

 

 

RMC-BSR

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

Files to download
Dimensionsicon pdf
STEP (3D)

 

 

 

RMRC-28

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

Can also be used as a rotation stop module.

 RMRC 28 ap1

T-slot sets for clamps

Some clamp types for the RM system already have a code, for example, RMC-DR or RMC-DS. Code is defined as a set of letters and numbers given to a product, where the letters and numbers are abbreviated attributes that distinguish one product from another as size, product type, jaw type, etc. If you cannot find a suitable product code from our price list, please create your own code.

 All B- and D-series clamps and combinations are suitable for the Multi-Rail RM system.

Below are some examples of how to read the code: 
Adapter RMA-D1 includes a T-slot nut and bolt for D-size clamps.
Adapter RMA-BP1 includes a T-slot nut, bolt and riser plate to lift up the clamp (B-size).

Please note that using B-series clamps on Multi-Rail without a plate is not recommended.

rma d1RMA-D1rma bp1RMA-BP1rma b1RMA-B1

CodeDim.STEP
RMA-D1icon pdf
RMA-BP1










Applications

rma app1

Rotation stop plate PRD-1

Files to download
Dimensionsicon pdf
STEP (3D)

upd rm1

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

Rotation stop plate PRD-2

Files to download
Dimensionsicon pdf
STEP (3D)

prd 2

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

prd 2 app h200

 

Base rail RM common properties

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 from every serration to the positioning hole is ± 0.01 mm.

RM base 1RM xview 1

Files to download
Installation on grid platformicon youtube

 

 

Base rail RM-100

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

Files to download
Dimensionsicon pdf
STEP (3D)
STEP (3D) DETAILS

 


 

Base rail RM-200 

Files to download
Dimensionsicon pdf
STEP (3D)
STEP (3D) DETAILS

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

 

 

Base rail RM-300 

Files to download
Dimensionsicon pdf
STEP (3D)
STEP (3D) DETAILS

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

 

 

Base rail RM-400

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
Dimensionsicon pdf
STEP (3D)
STEP (3D) DETAILS

 

 

 

Base rail RM-500 

Files to download
Dimensionsicon pdf
STEP (3D)
STEP (3D) DETAILS

A good universal rail for VMC and HMC machining.

 

 

Base rail RM-600 

Files to download
Dimensionsicon pdf
STEP (3D)
STEP (3D) DETAILS

This rail length is very popular on tooling blocks.

 

 

Base rail RM-700

Files to download
Dimensionsicon pdf
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.

 

Multi-Rail RM stopper modules (RMS-)

RMS overview foto 1 w800The 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
Installationicon youtube

 

 

RMS-S, RMS-Sn 

 CodeDimensions STEP
 RMS-Sicon pdf
 RMS-S2icon pdf
 RMS-S3icon pdf

The most common stopper is RMS-S, which has two smooth and nitrided jaws. It is optimal for the second setup, when OK-VISE clamps are used with full force. Friction level is adequate even for roughing and other types of machining where high forces occur.

The accuracy from every serrration to the jaw surface is ± 0.01 mm.

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

RMS-S3 is higher than RMS-S. 

RMS S 1RMS-SRMS S2 2RMS-S2RMS S3RMS-S3

Grip stopper RMS-G4

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

Grip stopper RMS-G4S

Files to download
Dimensionsicon pdf
STEP (3D)

rms g4sRMS-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-R

Files to download
Dimensionsicon pdf
STEP (3D)

RMS R 2

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.

 

RMS-SR

Files to download
Dimensionsicon pdf
STEP (3D)

Stoppers that have -ab at the end of the product code are in most cases combinations of two different jaws.

For example, in the RMS-SR model, one jaw is serrated (R) and another one is smooth (S).

RMS-R2

 CodeDimensions STEP
 RMS-R2icon pdf

RMS R2jThis stopper type has a serrated contact area on both sides of the stop module. The contact area is nitrided.

One popular variation is a stopper RMS-SR2 which has one serrated (R2) and one smooth (S) jaw.   

 

RMS-SR2

This stopper has one jaw that is serrated ( like in RMS-R2) and the other is smooth.

 

RMS-M, RMS-MS, RMS-Mx

 CodeDim. STEP
 RMS-Micon pdf
 RMS-MS

RMS MSRMS-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.

RMS-D, RMS-Dx

 CodeDim. STEP
 RMS-Dicon pdf
 RMS-DS

RMS D

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.

RMS-G, RMS-Gx

 CodeDim. STEP
 RMS-Gicon pdf
 RMS-GSicon pdf

RMS GSRMS-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.

RMS-T, RMS-Tx

 CodeDim. STEP
RMS-Ticon pdf
RMS-TSicon pdf
RMS-TRicon pdf

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. RMS-TS has one smooth jaw (photo) and one additional piece jaw. In the RMS-TR module one jaw is serrated and another one is an additional piece jaw.

 

rms t h200RMS-TRMS TSRMS-TS

RMS-H, RMS-Hx

 CodeDim. STEP
 RMS-Hicon pdf
 RMS-HSicon pdf 

RMS-HRMS-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.

 

RMS-V, RMS-Vx

 CodeDim. STEP
 RMS-Vicon pdf
 RMS-VSicon pdf

rms vs f1RMS-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).

RMS-R64

Files to download
STEP (3D) 

RMS R64RMS-R64This 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 EX1

RMRS-28

RMRS 28RMRS-28This 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.

 

 RMRS 28 AP2

Multi-Rail RM parallels (RMP-) and riser blocks

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.

RMP 1 ap1

RMP J1 ap1 resize 

 

Files to download
Installationicon pdf

 

 

 

 

RMP-1

RMP-1 is the most common parallel model.

Files to download
Dimensionsicon pdf
STEP (3D) 

RMP 1 resize 

 






RMP-1H8

RMP-1H8 is a 8 mm high variation of RMP-1.

Files to download
Dimensionsicon pdf
STEP (3D) 

RMP 1 resize 

 



 

RMP-2

Files to download
Dimensionsicon pdf
STEP (3D) 

RMP 2
 

 



Magnet parallel RMP-MG1

Files to download
Dimensionsicon pdf
STEP (3D)

rmp m1

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.

Magnet parallel RMP-M42

RMP M42 400X300

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.

RMP M42 AP1

RMP-J1

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

Files to download
Dimensionsicon pdf
STEP (3D) 

RMP J1 resize

 





 

 

Multi-Rail RM side guides (RMG-)

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.

Magnet side guide RMG-M1

Files to download
Dimensionsicon pdf
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.

magnet side guide

 

 

 

 

RMG-1

Files to download
Dimensionsicon pdf
STEP (3D)

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

RMG 1 f1

Load assistant

Files to download
Dimensionsicon pdf
STEP (3D)

RMGS 4X2 2 300X400

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

RMGS 4X2 app1 300x400RMGS 4X2 app2 300x400RMGS 4X2 app3 300x400

Side guide magnet M1

m1

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

Machining options

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.

M6X4-1

 

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.

M6X4 1

 

M-N1

rm maching options

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.

 

 

 

 

 

M-T1

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 widht : 18 or 20 mm
Slot midpoint position

 

 

 

 

 

Multi-Rail RM adapter sets

The following adapter sets are recommended for use in the installation works of the Multi-Rail systems on the different platforms.

PlatformRM-100RM-200RM-300RM-400RM-500RM-600RM-700
BlankAD-RM-2AD-RM-3AD-RM-5AD-RM-6AD-RM-7AD-RM-8AD-RM-9
Grid M12AD-RM-2AD-RM-3AD-RM-5AD-RM-6AD-RM-7AD-RM-8AD-RM-9
        



 

 

The set AD-RM-n includes n pieces of bolts, where 2 bolts are type OKSB12-45 and the remaining ones (n-2 pieces) are of type DIN912M12X45.

Fastening clamps

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
IC1-12-C For Combo-Rail

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

fastening clamps

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

Threads and positioning holes on the platforms

When a Multi-Rail system is installed on the grid or blank platform, most typical way of installation is to use two shoulder bolts for positioning and DIN912 bolts for remaining holes.

Shoulder bolt requires a precise 12 mm hole. Additionally, bushings and/or threaded inserts can be used.
For the standard bolts simple M12 thread is needed. In aluminium platforms, threaded inserts are recommended.

Inserts and platforms are available through the OK-VISE global distribution network.

M12 threads

WIRELESS DIGIFORCE FORCE VERIFICATION SYSTEM

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 )

 

Wireless Digiforce display DF-WDA3

DF WDA3 1000X600

Includes power adapter 230 VAC to 12 VDC 
Standard Modbus connection to SCADA
Touch-sreeen display.

The display unit shows the direct minimum and maximum I/O alarms that can easily be connected to any machining centre, and also comes equipped with a clear and intuitive visual indication screen for the operator.

 

Wireless Digiforce measuring unit DF-WMA3

  • Transmits force data every 1 second
  • Uses 868 MHz frequency ( EU standard )
  • Battery duration min 3 months ( unit can also be switched off to extend battery life )
  • M12 connector to force sensor

DFS 1 400X600

Uses 868 MHz frequency (EU standard)

 

 

A stopper RMS-50A with DIGIFORCE DFS-1 option 

Some Multi-Rail RM stoppers like RMS-50A can be ordered with the DIGIFORCE DFS-1 sensor option.

RMS 50A with DFS 1 400x300

 

DIGIFORCE SCADA DFC-1

This optional system element collects information from several DIGIFORCE displays so that historical data can be viewed.

DFC 1 400x300

Download the brochure

core 2017 fixturing16