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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 6" x 14" and 6" x 18"
Manual Precision Surface Grinders
Freeport 618 surface grinder
These Freeport small precision surface grinders are manual feed, but the similar SGS-816 series does have hydraulic feed versions. They have ball bearing inserted steel slideways for near friction free action from left to right.  The cross slide ways are double V's to ensure high stability. The main structure is entirely of cast meehanite.

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-614F
SGS-618F
Max. grinding surface WxL
152 x 355mm
 6" x 14"
152 x 455mm
6" x 18"
Working Surface of table. WxL
150 x 365mm  5.9" x 14.3"
150 x 465mm  5.9" x 18.3"
Max. Horizontal travel of table.
380mm  15"
480mm  18.9"
Table surface to spindle center
175m   6.9"
175mm  6.9"
Max. Cross travel of table.
400mm   15.7"
Vertical handwheel (1 gra)
0.005mm  0.0002"
Vertical handwheel (1 rev)
1mm  0.05"
Cross feed handwheel (1 gra)
0.02mm   0.001"
Cross feed handwheel (1 rev)
5mm  0.1"
Spindle motor
1.5 Hp
Grinding wheel OD x T x ID
180 x 13 x 31.75mm 
77" x 0.5" x 1.25"
Spindle speed, standard
3,450 RPM
Spindle speed, variable
2,000 to 4,000 RPM
Coolant motor
1/8 Hp
Dust collector motor
1/2 Hp
Net Weight
580kgs 1276lbs
680 kgs 1496 lbs
Gross weight
730 kgs    1,606 lbs
780 kgs     1,716 lbs