Surface Grinders
There are six models of Surface Grinding Machines with
working areas up to 1524x508mm.
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.
Model AJ-500
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.
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Specifications
| Table |
AJ-500 H/HD |
AJ-600 H/HD |
AJ-750 H/HD |
AJ-800 HD |
AJ-1000 HD |
AJ-1500 HD |
| Working surface (mm) |
483 x 228 |
584 x 254 |
737 x 254 |
800 x 400 |
1016 x 508 |
1524 x 508 |
Maximum Longitudinal
Traverse (mm) |
520 |
622 |
775 |
840 |
1116 |
1624 |
| Longitudinal speed (m/min) |
6.7-24.4 |
6.7-24.4 |
6.7-24.4 |
4.9-24.4 |
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 |
| Maximum table loading (kg) |
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1000 |
1200 |
Grinding Head |
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| 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 |
| Spindle speed (rpm) |
2900 |
1450 |
1450 |
1450 |
1450 |
1450 |
Maximum height of
spindle centre (mm) |
480 |
590 |
590 |
635 |
600 |
600 |
| Vertical positioning |
Hand (H) Power (HD) |
Hand (H) Power (HD) |
Hand (H) Power (HD) |
Power |
Power |
Power |
Vertical downfeed
(HD model only) |
Auto |
Auto |
Auto |
Auto |
Auto |
Auto |
Vertical traverse handwheel
graduation (mm) |
0.0025 |
0.002 |
0.002 |
0.002 |
0.002 |
0.005 |
Cross feed handwheel
graduation (mm) |
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 |
Automatic cross traverse
(mm) |
0-17.5 |
0.16 |
0.16 |
0.25 |
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Hydraulic System |
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| Working pressure (kg/cm2) |
18-22 |
18-22 |
18-22 |
18-22 |
18-22 |
18-22 |
| Tank capacity (l) |
60 |
60 |
60 |
80 |
80 |
80 |
Motors |
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| Grinding spindle power |
2Hp (1.5kW) |
5Hp (3.7kW) |
5Hp (3.7kW) |
7.5Hp (5.6kW) |
10Hp (7.5kW) |
10Hp (7.5kW) |
| 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) |
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) |
| Hydraulic pump |
2Hp (1.5kW) |
2Hp (1.5kW) |
2Hp (1.5kW) |
3Hp (2.2kW) |
5Hp (3.7kW) |
5Hp (3.7kW) |
| 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) |
| Coolant flow rate (l/min) |
40 |
40 |
40 |
40 |
40 |
40 |
Weight and Dimensions |
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| Net weight of machine (kg) |
1300 |
1900 |
1950 |
2800 |
4500 |
5000 |
| Gross weight (kg) |
1550 |
2200 |
2300 |
3300 |
5200 |
5800 |
| 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 |
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