UTG Series Broach Grinder

The Star UTG Series are CNC-driven universal tool grinders that are unsurpassed in versatility and performance. Available in four length variations from the UTG-600 through a UTG-2400, all our machines are built in the USA and are backed with the best warranty, service, and training in the industry.

Suited for Excellent Grinding

The UTG Series are suited for part lengths of 3mm to 2400mm (1/8” – 94”), suited for excellent grinding of:

Round Broaches
Flat Broaches
Straight Gash Hobs
Shaper Cutters
Spiral Broaches
Slab Mills
Rack Gear Cutters
Worm Gear Hobs

UTG Broach Grinders Brochure Download

Standard Features Include:

FANUC 6-Axis CNC controller with digital servo motors

Solutions available for a wide range of applications

NDual-probe system for work piece and grinding wheel setup

Glass scales on all linear axes

Manual HSK wheel pack mounting

Standard and custom software

Movable A-Axis headstock for tools up to 3200 mm

Onboard programmable wheel truing

Fixed “A” Axis headstock and a movable tailstock for tools up to 3200 mm between centers

Optional Features:

Engineered tailstocks and steady rests
Grinding wheel auto-sticking capabilities for unmanned operations
Various coolant system and mist collecting options

Automation Specifications

TECHNICAL DATA	METRIC	INCH
Base Machine Dimensions (L x W x H)	5500 x 2300 x 2500 mm	18.2’ x 7.6’ x 8.4’
Total Weight: Base Machine	15,000 kg	33,000 lbs
Maximum Workpiece Diameter	305 mm	12 inches
Maximum Workpiece Length	3200 mm	126 inches
A - Axis Workhead Spindle 360° Rotation	60 rpm	60 rpm
B - Axis Grinding Spindle Swivel 180° Total	22 rpm	22 rpm
C - Axis Grinding Spindle Swivel +/- 30°	25 rpm	25 rpm
X - Axis Horizontal Travel	450 mm	17.7 inches
X - Axis Travel Speed	5000 mm/min	200 inches/min
Y - Axis Vertical Travel	400 mm	16 inches
Y - Axis Travel Speed	5000 mm/min	200 inches/min
Z - Axis Horizontal Travel	2680 mm	106 inches
Z - Axis Travel Speed	5000 mm/min	200 inches/min
Grinding Spindle Speed	10,000 rpm	10,000 rpm
Peak Spindle Horsepower	7 kw	10 hp
Maximum Grinding Wheel Diameter	203 mm	8 inches
Smallest Programmable Movement - Linear	0.0001 mm	0.000004 inches
Linear Axis Glass Scale Feedback Resolution	0.00254 mm	0.0001 inches
Smallest Programmable Movement - Rotary	0.0001 deg	0.0001 deg
Optional High Accuracy Encoder	0.000000536 deg	0.00000536 deg
Rotary Axis Feedback Resolution: A-axis	0.00000006 deg	0.0001 deg
Rotary Axis Feedback Resolution: B-axis	0.00000006 deg	0.00000006 deg

Automation Specifications Download