JTEKT

GL4i

The GL4i is a cylindrical grinding machine for dedicated processes in a high-production environment. It features a hydrostatic wheel-head bearing and way system, and the patented JTEKT STAT® BEARING and floating plate to ensure high accuracy and positioning. This machine is offered in plain- and angled-head configurations.

AVAILABLE MACHINE SEARCH BY INDUSTRY

SPECIFICATION

ITEMS	UNIT	GL4Pi - 50 GL4Ai - 50	GL4Pi - 100 GL4Ai - 100	GL4Pi - 150 GL4Ai - 150	GL4Pi - 200 GL4Ai - 200
Distance between centers	mm	500	1,000	1,500	2,000
Swing over table	mm	Ø320 [ Ø400 ] *1	Ø320 [ Ø400 ] *1	Ø320 [ Ø400 ] *1	Ø320 [ Ø400 ] *1
Grinding diameter	mm	Ø0 ~ Ø300	Ø0 ~ Ø300	Ø0 ~ Ø300	Ø0 ~ Ø300
Load mass between centers	kg	150 *2	150 2 [ 300 ] 3	150 2 [ 300 ] 3	150 2 [ 300 ] 3
Wheel
Wheel OD x ID	mm	Type P : Ø405 X Ø127 Type A : Ø455 X Ø127 [ Type P only : Ø510 X Ø203.2 ]	Type P : Ø405 X Ø127 Type A : Ø455 X Ø127 [ Type P only : Ø510 X Ø203.2 ]	Type P : Ø405 X Ø127 Type A : Ø455 X Ø127 [ Type P only : Ø510 X Ø203.2 ]	Type P : Ø405 X Ø127 Type A : Ø455 X Ø127 [ Type P only : Ø510 X Ø203.2 ]
Max. wide	mm	75 [ 100 ( Ø405, Ø455) / 50 ( Ø510 ) / 100 ( Ø510 ) ]	75 [ 100 ( Ø405, Ø455) / 50 ( Ø510 ) / 100 ( Ø510 ) ]	75 [ 100 ( Ø405, Ø455) / 50 ( Ø510 ) / 100 ( Ø510 ) ]	75 [ 100( Ø405, Ø455) / 50 ( Ø510 ) / 100 ( Ø510 ) ]
Surface speed	m/s	33 [ 45 ]	33 [ 45 ]	33 [ 45 ]	33 [ 45 ]
Workhead
Spindle speed	min¯¹	21 ~ 500 *4	21 ~ 500 *4	21 ~ 500 *4	21 ~ 500 *4
Machine weight *5	kg	4,000	5,000	6,000	7,000

The specification maybe restricted according to the tooling of customer.
*1: The Ø400 mm swing specification is offered on a per-machine basis. Please consult with our sales department.
*2: The max. load on the live spindle of the workhead with dead spindle plus live spindle (optional accessory ) for GL3i is 10 kg, and 40 kg for GL4i. ( including workpiece and workpiece holder )
*3: If you would like the 300 kg specification, please consult with our sales department.
*4: Subject to change depending on workhead model type.
*5 : Subject to change depending on specifications and accessory parts, etc
[ ] ; Optional accessory

The best machine for achieving high accuracy and productivity with a simple machine configuration

Long - term grinding accuracy
• JTEKT STAT BEARING
• High rigidity, low vibration bed
• High - accuracy feed mechanism
• Low thermal displacement bed
• Heat isolation cover

Simple and easy operation
• Displaying craftsmen skill - that is manual intervention
• Improved efficiency of single part grinding
• Conversational controls allow for ease of use
• HMI TOYOPUC-Touch of the IoE* era

Consideration of safety, reassurance and workability
• Excellent workability with a full cover
• Manual operations are possible with front face handle

CYLINDRICAL GRINDERS

GL4i

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