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Black Granite Surface PlatesSERIES 517

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Cast iron surface plate

Granite surface plate

Steel stand(with leveling bolt)

FEATURES• Natural granite seasoned for thousands of years is free from

deterioration or dimensional change over time.• Granite surface plate has many advantages over cast iron

surface plates:Twice as hard as cast iron.Minimal changes in dimension due to temperature changes.

• Free from wringing, so there is no interruption of work.

Dimensions

• Trouble-free operation for use with magnetic materials.• Long life and rust-free, resulting in low maintenance

costs.• Steel stands are optional.

• Free from burrs or protrusions because of the fine grainstructure and insignificant stickiness; this ensures a high degreeof flatness over a long service life and causes no damage toother parts or instruments.

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SPECIFICATIONS: 00 gradeDimensions Order No. Flatness w d Mass Steel stands (optional) Steel stands (optional)(WxDxH) Order No. h (adjustable) Remarks300 x 300 x 100mm 517-401-4 517-401K 0.002mm 240mm 240mm 27kg — — —450 x 300 x 100mm 517-411-4 517-411K 0.002mm 390mm 240mm 40kg — — —600 x 450 x 100mm 517-414-4 517-414K 0.0025mm 500mm 370mm 80kg 517-203/203R*/203CR** 755 - 780mm With levelling bolt600 x 600 x 130mm 517-403-4 517-403K 0.0025mm 500mm 500mm 140kg 517-204/204R*/204CR** 785 - 810mm With levelling bolt750 x 500 x 130mm 517-405-4 517-405K 0.003mm 630mm 420mm 146kg 517-205/205R*/205CR** 785 - 810mm With levelling bolt1000 x 750 x 150mm 517-407-4 517-407K 0.003mm 700mm 630mm 337kg 517-206/206R*/206CR** 755 - 780mm With levelling bolt1000 x 1000 x 150mm 517-409-4 517-409K 0.0035mm 700mm 700mm 450kg 517-207/207R*/207CR** 735 - 775mm With levelling bolt1500 x 1000 x 200mm 517-413-4 517-413K 0.004mm 1100mm 700mm 900kg 517-208/208R*/208CR** 735 - 775mm With levelling bolt2000 x 1000 x 250mm 517-410-4 517-410K 0.0045mm 1500mm 700mm 1500kg 517-209/209R*/209CR** 735 - 775mm With levelling bolt2000 x 1500 x 300mm 517-416-4 517-416K 0.005mm 1500mm 1100mm 2700kg 517-210/210R*/210CR** 735 - 775mm With levelling bolt2000 x 2000 x 300mm 517-417-4 517-417K 0.0055mm 2000mm 1500mm 4200kg O6AAY174 700 - 706mm —3000 x 1500 x 400mm 517-418-4 517-418K 0.0065mm 1500mm 1100mm 5400kg O6AAY175 700 - 706mm —3000 x 2000 x 500mm 517-419-4 517-419K 0.007mm 2000mm 1500mm 9000kg O6AAY176 700 - 706mm —

SPECIFICATIONS: 0 gradeDimensions Order No. Flatness w d Mass Steel stands (optional) Steel stands (optional)(WxDxH) Order No. h (adjustable) Remarks300 x 300 x 100mm 517-301-4 517-301K 0.003mm 240mm 240mm 27kg — — —450 x 300 x 100mm 517-311-4 517-311K 0.003mm 390mm 240mm 40kg — — —600 x 450 x 100mm 517-314-4 517-314K 0.004mm 500mm 370mm 80kg 517-203/203R*/203CR** 755 - 780mm With levelling bolt600 x 600 x 130mm 517-303-4 517-303K 0.005mm 500mm 500mm 140kg 517-204/204R*/204CR** 785 - 810mm With levelling bolt750 x 500 x 130mm 517-305-4 517-305K 0.005mm 630mm 420mm 146kg 517-205/205R*/205CR** 785 - 810mm With levelling bolt1000 x 750 x 150mm 517-307-4 517-304K 0.007mm 700mm 630mm 337kg 517-206/206R*/206CR** 755 - 780mm With levelling bolt1000 x 1000 x 150mm 517-309-4 517-309K 0.008mm 700mm 700mm 450kg 517-207/207R*/207CR** 735 - 775mm With levelling bolt1500 x 1000 x 200mm 517-313-4 517-313K 0.008mm 1100mm 700mm 900kg 517-208/208R*/208CR** 735 - 775mm With levelling bolt2000 x 1000 x 250mm 517-310-4 517-310K 0.010mm 1500mm 700mm 1500kg 517-209/209R*/209CR** 735 - 775mm With levelling bolt2000 x 1500 x 300mm 517-316-4 517-316K 0.010mm 1500mm 1100mm 2700kg 517-210/210R*/210CR** 735 - 775mm —2000 x 2000 x 300mm 517-317-4 517-314K 0.011mm 2000mm 1500mm 4200kg O6AAY174 700 - 706mm —3000 x 1500 x 400mm 517-318-4 517-318K 0.013mm 1500mm 1100mm 5400kg O6AAY175 700 - 706mm —3000 x 2000 x 500mm 517-319-4 517-319K 0.014mm 2000mm 1500mm 9000kg O6AAY176 700 - 706mm —

SPECIFICATIONS: 1 gradeDimensions Order No. Flatness w d Mass Steel stands (optional) Steel stands (optional)(WxDxH) Order No. h (adjustable) Remarks300 x 300 x 100mm 517-101-4 517-101K 0.005mm 240mm 240mm 27kg — — —450 x 300 x 100mm 517-111-4 517-111K 0.006mm 390mm 240mm 40kg — — —600 x 450 x 100mm 517-114-4 517-114K 0.008mm 500mm 370mm 80kg 517-203/203R*/203CR** 755 - 780mm With levelling bolt600 x 600 x 130mm 517-103-4 517-103K 0.008mm 500mm 500mm 140kg 517-204/204R*/204CR** 785 - 810mm With levelling bolt750 x 500 x 130mm 517-105-4 517-105K 0.009mm 630mm 420mm 146kg 517-205/205R*/205CR** 785 - 810mm With levelling bolt1000 x 750 x 150mm 517-107-4 517-107K 0.012mm 700mm 630mm 337kg 517-206/206R*/206CR** 755 - 780mm With levelling bolt1000 x 1000 x 150mm 517-109-4 517-109K 0.013mm 700mm 700mm 450kg 517-207/207R*/207CR** 735 - 775mm With levelling bolt1500 x 1000 x 200mm 517-113-4 517-113K 0.016mm 1100mm 700mm 900kg 517-208/208R*/208CR** 735 - 775mm With levelling bolt2000 x 1000 x 250mm 517-110-4 517-110K 0.019mm 1500mm 700mm 1500kg 517-209/209R*/209CR** 735 - 775mm With levelling bolt2000 x 1500 x 300mm 517-116-4 517-116K 0.020mm 1500mm 1100mm 2700kg 517-210/210R*/210CR** 735 - 775mm With levelling bolt2000 x 2000 x 300mm 517-117-4 517-117K 0.022mm 2000mm 1500mm 4200kg O6AAY174 700 - 706mm —3000 x 1500 x 400mm 517-118-4 517-118K 0.025mm 1500mm 1100mm 5400kg O6AAY175 700 - 706mm —3000 x 2000 x 500mm 517-119-4 517-119K 0.027mm 2000mm 1500mm 9000kg O6AAY176 700 - 706mm —

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QUICK GUIDETO PRECISIONMEASUREMENT

Gauge Block Terminology

WRINGING(1) Decide on the combination of gauge blocks to be used while

keeping the following points in mind:a. Use as few gauge blocks as possible to obtain the required

dimension.b. Select thick gauge blocks whenever possible.c. Select gauge blocks starting with the one that has least

significant digit required, and then work up to ones withmore significant digits.

(2) Clean the gauge blocks with an appropriate cleaning agent.(3) Check the gauge blocks for burrs.

Use an optical flat to checkfor burrs, as follows:

a. Clean the measuring face.b. Gently bring the optical flat into contact with the measuring

face.c. Gently slide the optical flat on the measuring face and

interference fringes will appear.Check 1: If no interference fringes can be seen, a large burr

or dust may be contaminating the measuring face.

c. Wringing two thin gauge blocks:

To prevent the gauge blocksfrom bending, temporarilywring one of the thin gaugeblocks to a thick gauge blockthat will be used as a support.

Wring the other thin gaugeblock to the first block.

Remove the thick gauge block.

Heatsink

Irregularinterference fringes

Check the wringing condition with anoptical flat.

Bring the two measuring facesinto contact with each otherat right angles.

While applying a small amount ofpressure, gently turn one gaugeblock on the other. You will feelthe two blocks stick together.

Slide one gauge block overthe other so that the sides ofthe gauge blocks are flushwith each other.

a. Wringing two thick gauge blocks:

Place one end of the thingauge block onto one end ofthe thick gauge block.

While applying pressure evenly over the entire wringingsurface, slide the thin gauge block over the other untilthe two measuring faces coincide with each other.

b. Wringing a thin gauge block to a thick gauge block:

Wipe the measuring faces clean and thermally stabilizethe gauge blocks before measurement.

d. Gently press the optical flat against the measuring face andthe interference fringes will disappear.Check 2: If the interference fringes disappear, it

indicates that there is no burr present.Check 3: If the interference fringes remain partially, gently

move the optical flat to and fro. Then, if the fringesare seen in the same location on the measuringface, there is a burr on the gauge block surface; ifthe fringes remain in the same location on theoptical flat, there is a burr on the optical flat.

e. Remove burrs, if any, from the measuring face.(See page 273.)

(4) Apply a very small amount of oil to the measuringface and spread it evenly over the entire surface.Wipe the film of oil from the surface.• Grease, spindle oil, or Vaseline is normally applied.

(5) Gently bring the two measuring faces into contact using one ofthe following methods, depending on the sizes of the gaugeblocks to be wrung together.