MRS modular rack system

MRS modular rack system

ACR3

Renishaw's modular rack system (MRS) allows customisation of probe and stylus changing racks to optimise CMM functionality.

The MRS is a modular system designed to provide a platform for Renishaw probe and stylus changing racks. It comprises a rail and two leg assemblies, and is available in three different standard rail lengths, 400 mm, 600 mm and 1000 mm (15.75 in, 23.62 in and 39.37 in) to suit a number of changer requirements.

The MRS rail can also be placed at different heights from the CMM's bed by using multiple MRS legs to allow the required clearance for long styli and extension bars.

The standard interconnecting MRS legs supplied (4 per kit) are each 125 mm (4.92 in) long. A maximum recommended leg length of 500 mm (19.69 in) can be achieved by purchasing additional legs. These are available in either 62.5 mm or 125 mm (2.46 in or 4.92 in) lengths. The rack is mounted on the CMM bed via two MRS feet attached to the legs.

Where heavier rack system configurations are to be used e.g. multiple SCP80s mounted to a 1000 mm (39.37 in) rail length, the MRS system can be upgraded by using the optional heavy duty legs which are Ø60 mm × 350 mm long (Ø2.36 in × 13.78 in long). These legs mount beneath the standard legs / feet and are attached to the CMM bed.

The MRS is compatible with the following Renishaw change rack systems:

MRS heavy duty legs

Installation of the MRS heavy duty leg kit

Where an MRS installation has numerous SCP80s containing heavy stylus arrangements, or vertical stylus arrangements exceeding 190 mm (7.48 in), it is recommended that the optional MRS heavy duty leg kits are used to provide additional rigidity / height.

These kits are purchased separately to match the number of legs used in the MRS installation. The heavy duty leg kit stands 330 mm (12.99 in) tall and is positioned between the CMM table and the standard MRS leg assembly.

NOTE: The MRS heavy-duty leg kit part number is A-4192-0020 and comprises one heavy duty leg assembly. Therefore, two kits are required for a typical MRS installation.

KeyDescription
MRS heavy duty leg kit 
1Heavy duty leg
2Double-ended threaded stud *
3Footplate
Standard MRS kit parts 
4Standard MRS leg
5Leg to foot adaptor
6M10 bolt
7MRS foot
8MRS rail
9Step back adaptor
10Tee nut and bolt

* Two sets of double ended threaded studs are provided to suit different CMM table configurations. The thread sizes supplied are M10 and M8. Alternatively, M6, 3/16 in UNC and 5/16 in UNC can be provided on request from your Renishaw supplier.

MRS adjustable footplates

Components of heavy duty leg kits

By using the optional MRS adjustable footplates, the MRS rail can also be placed at different positions on the CMM's table thereby ensuring that a maximised working volume can be achieved. The MRS adjustable footplates can be used with the MRS standard leg and the MRS heavy duty leg arrangements. The range of adjustment is via four boltholes in steps: 25 mm / 50 mm / 75 mm / 100 mm (0.98 in / 1.97 in / 2.95 in / 3.94 in).

NOTE: The MRS adjustable footplates kit part number is A-4192-0702 and comprises two footplates.

Technical specification

Dimensions

MRS specification summary

 

 MRS kit 1MRS kit 2MRS kit 3

Rail length

NOTE: Allow additional 10 mm (0.39 in) for plastic end caps

400 mm (15.75 in)600 mm (23.62 in)1000 mm (39.37 in)

Number of legs required (recommended)

22‡2‡

Maximum usable rail length

   

With two legs mounted to underside of rail (as shown)

320 mm (12.60 in)520 mm (20.47 in)920 mm (36.22 in)

With legs mounted via step back adaptor (see detail)

317 mm (12.48 in)600 mm (23.62 in)1000 mm (39.40 in)

Height to top of rail (using legs supplied with MRS kit)

   

H1 = with two legs mounted to underside of rail (as shown)

325 mm (12.80 in)325 mm (12.80 in)325 mm (12.80 in)

H2 = with legs mounted via step back adaptor (see detail)

317 mm (12.48 in)317 mm (12.5 in)317 mm (12.5 in)

Height of additional single leg

62.5 mm (2.46 in)
125 mm (4.92 in)

62.5 mm (2.46 in)
125 mm (4.92 in)

62.5 mm (2.46 in)
125 mm (4.92 in) 

Height of additional heavy duty leg Ø60 mm (2.36 in)

330 mm (12.99 in)330 mm (12.99 in)330 mm (12.99 in)

Height of additional adjustable footplate

16 mm (0.63 in)16 mm (0.63 in)16 mm (0.63 in)

Distance from port centre to leg (in docking axis)

   

D1 = with legs mounted to underside of rail (as shown)

   

FCR25

41 mm (1.61 in)41 mm (1.61 in)41 mm (1.61 in)

ACR3

56 mm (2.21 in)56 mm (2.21 in)56 mm (2.21 in)

SCP600

69.2 mm (2.72 in)69.2 mm (2.72 in)69.2 mm (2.72 in)

SCP80

134 mm (5.28 in)134 mm (5.28 in)134 mm (5.28 in)

D2 = with legs mounted via step back adaptor (see detail)

   

FCR25

94 mm (3.7 in)94 mm (3.7 in)94 mm (3.7 in)

ACR3

109 mm (4.29 in)109 mm (4.29 in)109 mm (4.29 in)

SCP600

122.2 mm (4.81 in)122.2 mm (4.81 in)122.2 mm (4.81 in)

SCP80

187 mm (7.36 in)187 mm (7.36 in)187 mm (7.36 in)

Rail length required per changer unit

   

FCR25*

115.8 mm (4.56 in)115.8 mm (4.56 in) 115.8 mm (4.56 in) 

ACR3**

280 mm (11.02 in)280 mm (11.02 in)280 mm (11.02 in)

SCP600*

87 mm (3.43 in)87 mm (3.43 in)87 mm (3.43 in)

SCP80*

133 mm (5.24 in)133 mm (5.24 in)133 mm (5.24 in)

* Includes 2 mm (0.08 in) extra allowance per unit

** Includes 5 mm (0.20 in) extra allowance per unit

‡ Centre leg may be required in certain applications

Installation and user's guides

  • Installation and user's guide: MRS

    This guide contains information on the Renishaw modular rack system (MRS) . In addition to providing an introduction and simplified explanation of the MRS, this guide also provides detailed installation instructions.

    [739kB]

Other

  • User's leaflet: MRS heavy duty legs

    Where an MRS installation has numerous SCP80s containing heavy stylus arrangements, or vertical stylus arrangements exceeding 190 mm, it is recommended that the optional MRS heavy duty leg kits are used to provide additional rigidity/height. These kits can be purchased separately to match the number of legs used on the MRS.

    [89kB]
  • User's leaflet: MRS adjustable footplates

    The MRS rail can be placed at different heights from the CMM’s bed by using multiple MRS legs to provide the required clearance for long styli and extension bars. By using the optional MRS adjustable footplates shown below, the MRS rail can also be placed at different positions on the CMM’s bed thereby ensuring that a maximised working volume can be achieved.

    [56kB]
 Part number
MRS kits 
MRS kit (400 mm) including 1 × 400 mm rail, 2 × mountings, 4 × 125 mm legs, 2 × step back adaptors and 2 mounting adaptorsA-4192-0001
MRS kit (600 mm) including 1 × 600 mm rail, 2 × mountings, 4 × 125 mm legs, 2 × step back adaptors and 2 mounting adaptorsA-4192-0002
MRS kit (1000 mm) including 1 × 1000 mm rail, 2 × mountings, 4 × 125 mm legs, 2 × step back adaptors and 2 mounting adaptorsA-4192-0003
MRS kit (1250 mm) including 1 × 1250 mm rail, 2 × mountings, 4 × 125 mm legs, 2 × step back adaptors and 2 mounting adaptorsA-4192-0011
MRS heavy duty leg kit (single leg)A-4192-0020
MRS adjustable footplate kit (pair)A-4192-0702
MRS accessories 
MRS rail - 400 mmA-4192-0050
MRS rail - 600 mmA-4192-0051
MRS rail - 1000 mmA-4192-0052
MRS leg - 62.5 mm longA-4192-0061
MRS leg - 125 mm longA-4192-0053
MRS Ø60 mm × 350 mm long extension leg (for use with SP80)A-4192-0020
MRS leg foot adaptorA-4192-0055
MRS fixed footA-4192-0056
MRS step back adaptorA-4192-0058
MRS M8 T nutP-NU18-0005
MRS step back spacer kitA-4192-0014
MRS 2 × 125 legA-4192-0059
MRS 4 × 125 legA-4192-0060