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male H.H. Roberts Machinery Limited
1324 Matheson Blvd E., Mississauga, Ontario, Canada. L4W-2Z7, Fax 905-624-9065
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Freeport Surface Grinders
12" x 24"  to 16" x 40"
Autofeed and CNC Models
Freeport sgs-1224sd CNC surface grinder
Showing the Freeport  SGS-1224-SD  digital controlled surface grinder

View a video on the Freeport double column surface grinders. Well produced and in English)
This shows grinding on several different models of the double column machines.  Work shown includes flat thin plates, bases, columns and tables of machining centers, V-bed lathes, boring mill sub-tables etc.
Click on the icon below.
video on Freeport double column 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-1224
H / AH / AHR
AHD / SD
SGS-1230
H / AH / AHR
AHD / SD
SGS-1632
AH / AHD  SD
SGS-1640
AH/AHD/SD
max. grinding surface
304 x 609mm
12" x 24"
304 x 762mm
12" x 30"
406 x 812mm
16" x 32"
406 x 1016mm
16" x 40"
working surface of table
260 x 600
10.2" x 23.6"
260 x 750
10.2" x 29.5"
400 x 800
15.7" x 31.5"
400 x1,000
15.7" x 39.4"
max. horizontal travel of table.
690mm   27.2"
840mm   33.1"
960mm   37.8"
1160mm   45.7"
max. cross travel of table.
332mm    13.1"
450mm    17.7"
table surface to spindle center
600mm    23.6"
620mm   24.4"
table speed
5~25M/min  200~1000 inch/min
automatic cross feed of saddle
0~9mm   0"~0.35"
0~12mm   0"~0.47"
vertical handwheel (1 gra)
0.01mm   0.0005"
0.005mm    0.00025"
vertical handwheel (1 rev)
2mm   0.1"
1mm   0.05"
cross feed handwheel (1 gra)
0.01mm 0.005"
cross feed handwheel (1 rev)
4mm  0.2"
downfeed micro adjustment (1 gra)
AHD    0.002mm    0.0001"
SD    0.001mm   0.00005"
downfeed micro adjustment (1 rev)
AHD-0.2(0.01")
longitudinal travel adjustable
50 ~ 609mm
2" ~ 24"
50 ~ 762mm
2" ~ 30"
50 ~ 812mm
2" ~ 32"
50 ~ 1,016mm
2" ~ 40"
cross feed travel adjustable from-to
0~304mm  0"~12"
0~406mm   0"~16"
spindle motor
5 Hp
7 1/2 Hp * 10 Hp
hydraulic pump motor
H / AH / AHD / SD   2 Hp
cross feed motor
40 W
downfeed motor
AHR   1/5 Hp
AHD    1/4 Hp
AH   1/5 Hp
AHD   1/4 Hp
grinding wheel (ODxTxID)
355 x 32 x 127mm
14" x 1.25" x 5"
355 x 50 x 127mm
14" x 2" x 5"
spindle speed (variable speed opt )
1750 RPM
dust collector motor
1/2 Hp
net weight
1,850 kgs
4,070 lbs
1,950 kgs
4,290 lbs
2,800 kgs
6,160 lbs
3,000 kgs
6,600 lbs