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Surface Grinders

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Product Range

Surface Grinders

There are many models of Ajax Surface Grinding Machines with working areas up to 3200 x 850mm.

All machines are traditional in design with easy access for complete, accurate and efficient control. All models are suitable for toolroom and production work. The longitudinal table movement is hydraulically driven and the cross traverse and wheel head feeds are electrically driven, all with infinitely variable speed control.

All models are available with manual downfeed of the wheel head and/or automatic downfeed which can be incrementally pre-set. Machines with the 'H' suffix indicate automatic longitudinal and cross feed as standard. Suffix 'HD' indicates that machines are also equipped with automatic downfeed.

We have been supplying surface grinders for over 30 years which give us the experence and skill to offer you the best product for the job. Surface grinding to a high finish is not an easy job, but with the training from Ajax engineers we can make the job look easy.

Model AJ-500

Model AJ-500

Model AJ-750


Model AJ-750





















Details

The Wheel Head

The wheel head spindle on all models is mounted on super precision bearings, completely sealed and maintenance free. The casting is constructed for extreme rigidity of the spindle and bearing assemblies. The grinding spindle is directly coupled to a dynamically balanced, flange-mounted motor through a shock absorbing coupling. The wheel head of all HD models is provided with rapid power positioning with fine positioning carried out by means of a 0.0025mm incremented handwheel.

Table

The longitudinal movement of the table is provided hydraulically and the rate of traverse is infinitely variable between the ranges shown below.
Lubrication of all slideways is by means of an electronically controlled pump unit through metering valves to the various lubrication ports. Hand traverse of the work table is by means of a hand wheel rack and pinion. The table is provided with ample operator splash protection.

Specifications

Model AJ-500 H/HD AJ-600 H/HD AJ-750 H/HD AJ-800 HD AJ-1000 HD AJ-1500 HD AJ-2000 HD AJ-3000 HD
Working surface (mm) 483 x 228 600 x 260 737 x 254 800 x 400 1016 x 508 1524 x 508 2000 x 600 3200 x 850
Maximum Longitudinal
Traverse (mm)
520 690 775 840 1116 1624 2105 3350
Longitudinal speed (m/min) 7-25 7-25 7-25 4.9-24.4 5-25 5-25 5-25 5-25
Maximum grinding
length & width (mm)
508 x 254 610 x 305 762 x 305 813 x 406 1016 x 508 1524 x 508 2000 x 600 3200 x 850
Maximum table loading (kg) 1000 1200 1500 2400
Grinding Head
Grinding wheel size (mm) 200 x 13 x 32 355 x 32 x 127 355 x 32 x 127 335 x 50 x 127 406 x 50 x 127 406 x 50 x 127 510 x 50 x 127 510 x 50 x 127
Spindle speed (rpm) 2900 1450 1450 1450 1450 1450 960 960
Maximum height of
spindle centre (mm)
480 590 590 635 600 600 850 950
Vertical positioning Hand (H) Power (HD) Hand (H) Power (HD) Hand (H) Power (HD) Power Power Power Power Power
Vertical downfeed
(HD model only)
Auto Auto Auto Auto Auto Auto Auto Auto
Vertical traverse handwheel
graduation (mm)
0.0025 0.002 0.002 0.002 0.002 0.005 0.002 0.002
Cross feed handwheel
graduation (mm)
0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02
Cross feed travel (mm) 0-267 0-330 0-343 0-406 0-558 0-558 0-600 0-850
Automatic cross traverse
(mm)
0-17.5 0-16 0-16 0-16 0-16

0-16

0-38 0-38
Hydraulic System
Working pressure (kg/cm2) 18-22 18-22 18-22 18-22 18-22 18-22 18-22 18-22
Tank capacity (l) 60 60 60 80 80 80 120 160
Motors
Grinding spindle power 2Hp (1.5kW) 5Hp (3.7kW) 5Hp (3.7kW) 7.5Hp (5.6kW) 7.5Hp (5.5kW) 10Hp (7.5kW) 10Hp (7.5kW) 15Hp (11kW)
Cross feed 0.2Hp (0.15kW) 0.2Hp (0.15kW) 0.2Hp (0.15kW) 0.25Hp (0.18kW) 0.25Hp (0.18kW) 0.25Hp (0.18kW) 0.25Hp (0.18kW) 0.25Hp (0.18kW)
Vetical positioning /
downfeed
0.25Hp (0.18kW) 0.25Hp (0.18kW) 0.25Hp (0.18kW) 0.25Hp (0.18kW) 0.25Hp (0.18kW) 0.25Hp (0.18kW) 1Hp (0.75kW) DC Servo
Hydraulic pump 2Hp (1.5kW) 2Hp (1.5kW) 2Hp (1.5kW) 3Hp (2.2kW) 5Hp (3.7kW) 5Hp (3.7kW) 7.5Hp (5.5kW) 15Hp (11kW)
Coolant pump 0.25Hp (0.18kW) 0.25Hp (0.18kW) 0.25Hp (0.18kW) 0.25Hp (0.18kW) 0.25Hp (0.18kW) 0.25Hp (0.18kW) 0.25Hp (0.18kW) 0.25Hp (0.18kW)
Coolant flow rate (l/min) 40 40 40 40 40 40 40 40
Weight and Dimensions
Net weight of machine (kg) 1300 1900 1950 2800 4500 5000 8500 15000
Gross weight (kg) 1550 2200 2300 3300 5200 5800 9600 18000
Dimensions (mm) 1524 x 914 x 1740 1850 x 1076 x 1880 2149 x 1076 x 1880 2502 x 1422 x 2000 3760 x 2235 x 2235 4648 x 2235 x 2235
Shipping case
dimensions (mm)
1680 x 1630 x 2010 2010 x 1700 x 2160 2290 x 1730 x 2160 2670 x 2160 x 2290 3370 x 2280 x 2220 5180 x 2640x 2300 7000 x 2800 x 2740 10500 x 3300 x 3000
Model AJ-1000HD


Model AJ-1000HD

Model AJSGTC 2000


Model AJSGTC 2000

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