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HH Roberts Machinery Ltd
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Freeport 10" x 20" & 12" x 24" Hydraulic Surface Grinders
Freeport 10" x 20" hydraulic surface grinder
Freeport 10" x 20" and light 12" x 24"
 Automatic Surface Grinders

Key to model identifiers
H = hydraulic long feed
AH = power long and cross feed
AHR = power long and cross and vertical rapid traverse
AHD = power long and cross feeds; vertical rapid traverse and auto incremental downfeed
SD = digital control (CNC)

 
SGS-1020
H / AH / AHR / AHD
SGS-N1224
H / AH / AHR / AHD
Max. grinding surface WxL
254 x 508mm
10" x 20"
304 x 609mm
12" x 24"
Working Surface of table. W x L
230 x 500mm
9.1" x 19.7"
2600 x 600mm
10.2" x 23.6"
   
 
Max. Horizontal travel of table.
565mm
22.2"
690mm
27.2"
Max. Cross travel of table.
263mm
10.4"
313mm
12.3"
Table surface to spindle center
500mm   19.7"
Table speed
5~25 M/min
200~1000 inch/min
Automatic crossfeed of sadle
0~9mm     0"~0.35"
Vertical handwheel per graduation
0.01mm   0.0005"
Vertical handwheel per revolution
2mm  (0.1")
Crossfeed handwheel (1 gra)
0.01   (0.0005")
Crossfeed handwheel (1 rev)
4mm  (0.2")
Downfeed mirco adjustment (1 gra)  
Downfeed mirco adjustment (1 rev)
AHD   0.2mm     (0.01")
Longitudinal travel adjustable from-to
50~508mm  2" x 20"
50~609mm  2" x 24"
Crossfeed travel adjustable from-to
0~254mm   0"~10"
0~304mm    0"~12"
Spindle motor
2 HP   *3 HP
Hydraulic pump motor
H/AH 1 HP        AHD/SD  2 HP
Crossfeed motor
40W
Downfeed motor
AHR 1/5    AHD 1/4 HP
Grinding wheel (ODxTxID)
205 x 13 x 31.75mm
8" x 0.5" x 1.25"
Spindle speed ( variable speed optional)
3500 RPM
Coolant motor
1/8 HP
Dust collector motor
1/2 HP
Net Weight
1,350 kgs
2,970 lbs

1,400 kgs
3,080 lbs

Gross weight
1,600 kgs
2,970 lbs
1,650 kgs
3,630 lbs