GL7 Cylindrical Grinder

GL7

Straight or angle head production grinder.

 *Many options and custom configurations. Call for detailed specs.
[ ] = special wheel specification

Max Part Size: 
Swing (GL7A/P-63/100) 15.7 in (400 mm)
Swing (GL7A/P-160/250) 15.7 in (400 mm) (opt 19.7 in (500 mm))
Center distance (GL7A/P-63) 24.8 in (630 mm)
Center distance (GL7A/P-100) 39.4 in (1,000 mm)
Center distance (GL7A/P-160) 63 in (1,600 mm)
Center distance (GL7A/P-250) 98.4 in (2,500 mm)
Max grinding diameter
(GL7A/P-63/100)		 ø11.8 in (ø300 mm)
Max grinding diameter
(GL7A/P-160/250)		 ø11.8 in (ø300 mm)
(opt ø15.7 in (ø400 mm))
Max load between centers
(GL7A/P-63/100)		 660 lb (300 kg) (opt 265 lb (120 kg) when using footstock with automatic repositioning quill)
Max load between centers
(GL7A/P-160/250)		 660 lb (300 kg) (opt 1,100 lb (500 kg) when using footstock with automatic repositioning quill)

External Grinding Wheel: 
Wheel spindle bearing Hybrid-type Toyoda STAT® bearing
Wheel drive motor 30 hp (22 kw) (opt 40 hp (30 kw))
Max wheel size (OD x ID) ø30 x 12 in (ø760 x 305 mm)
[ø36 x 12 in (ø915 x 305 mm)]
Max wheel width 9.8 in (250 mm) [6.3 in (160 mm)]
Max multi-wheel width (GL7A's) 9.8 in (250 mm) [7.9 in (200 mm)]
Max multi-wheel width (GL7P's) 15.7 in (400 mm) [7.9 in (200 mm)]
Wheel surface speed 9,000 sfpm (45 m/sec)
(opt 12,000 sfpm (60 m/sec))

Wheelhead: 
Wheelhead rapid feed (infeed) 590 ipm (15 m/min)
Wheelhead min. move increment 0.000004 in (0.0001 mm)

Control:
Toyoda GC32U

Table: 
Table rapid feed
(GL7A/P-63/100)		 590 ipm (15 m/min)
Table rapid feed
(GL7A/P-160/250)		 512 ipm (13 m/min)
(opt 315 ipm (8 m/min))
Table min. move increment 0.000004 in (0.0001 mm)

Workhead: 
Workhead type Live spindle
Workhead center taper MT #5
Workhead spindle speed (variable)
(GL7A/P-63/100)		 32 - 630 rpm
Workhead spindle speed (variable)
(GL7A/P-160/250)		 32 - 630 rpm (opt 20 - 300 rpm)
Workhead drive motor 2 hp (1.5 kw)

Footstock: 
Footstock center taper MT #5
Footstock max. center retraction 2.4 in (60 mm)

Machine Size: 
Floorspace (GL7A/P-63) 129 x 150 in (3,280 x 3,815 mm)
Floorspace (GL7A/P-100) 165 x 150 in (4,180 x 3,815 mm)
Floorspace (GL7A/P-160) 247 x 150 in (6,280 x 3,815 mm)
Floorspace (GL7A/P-250) 361 x 150 in (9,170 x 3,815 mm)
Net weight (GL7A/P-63) 20,945 lb (9,500 kg)
Net weight (GL7A/P-100) 22,710 lb (10,300 kg)
Net weight (GL7A/P-160) 27,560 lb (12,500 kg)
Net weight (GL7A/P-250) 29,320 lb (13,300 kg)

Specifications subject to change.