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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
20" x 40"  to 24 " x 60"
Autofeed and Digital (CNC)
 
Sunny Freeport 20 x 40 CNC surface grinder
Showing the Freeport SGS-2040-SD CNC 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
 
SGS-2040-SD
SGS-2060-SD
SGS-S2460-SD
maximum surface grinding area
508 x 1016mm
20" x 40"
508 x 1524mm
20" x 60"
608 x 1524mm
24" x 60"
Working Surface of table
500 x 1000mm
19.7" x 39.4"
500 x 1500mm
19.7" x 59.1"
600 x 1500mm
23.6" x 59.1"
max. horizontal travel of table.
1160mm
45.7"
1650mm
65"
max. cross travel of table.
550mm
21.7"
650mm
25.6"
table surface to spindle center
600mm   23.6"
table speed
5~25M/min      16~80fpm
automatic cross feed of saddle
0~259mm   0"~1"
vertical handwheel graduations
0.02mm     0.0001"
vertical handwheel  / 1 rev
0.5mm     0.02"
cross feed handwheel graduations
0.02mm   0.001"
cross feed handwheel (1 rev)
5mm     0.2"
down feed micro adjustment graduations
0.005mm    0.0002"
down feed micro adjustment / rev
0.05mm    0.002"
longitudinal travel adjustable
500 - 1100mm
19.7" - 43.3"
500 - 1600mm
19.7" - 63"
500 - 1600mm
19.7" - 63"
cross feed travel adjustable
0 - 510mm
0" - 20"
0 - 610mm
0" - 24"
spindle motor
10 Hp
hydraulic pump motor
5 Hp
cross feed motor
1/4 Hp * 1/2 Hp
downfeed motor
1/4 Hp
grinding wheel (OD x T x ID
406 x 50 x 127mm     16" x 2" x 5"
spindle speed
1750 RPM,  optionally variable speed
max. load capacity addition to magnetic chuck
1,000 kgs
2,200 lbs
1,200 kgs
2,640 lbs
1,300 kgs
2,860 lbs
net weight
4,500 kgs
9,900 lbs
5,000 kgs
11,000 lbs
6,000 kgs
13,200 lbs