USED JUNKER JUNKER BUAJ 30
Overview
This used Junker BUAJ 30 CNC cylindrical grinder is available from A.K. Machine Traders in Navi Mumbai, India. It grinds round workpieces held between centres to a working precision of IT4 ISO.
It takes workpieces up to 630 mm between centres and up to 120 kg in weight, with a centre height of 150 mm. The grinding headstock carries a disc up to 400 mm in diameter and 63 mm wide, driven by a 5.5 kW motor.
Key Features
CNC-controlled cylindrical grinding
Swivelling grinding headstock
Swivelling workpiece headstock with MK5 taper
Tailstock with MK4 quill
Adjustable upper table for grinding tapers
Applications
Shafts and spindles ground between centres
Precision round components for machine tools
Tapered workpieces
Cylindrical parts for general engineering
Commercial Details
Make: Junker
Model: BUAJ 30
Condition: Used
Location: Navi Mumbai, Maharashtra, India
Seller: A.K. Machine Traders
Frequently Asked Questions
What is the maximum distance between centres? It is 630 mm, with a centre height of 150 mm.
What size grinding disc does it take? It takes a disc up to 400 mm in diameter and 63 mm wide, with a 127 mm bore.
How heavy a workpiece can it hold? The maximum workpiece weight is 120 kg.
What should I ask when enquiring? Ask for photos or video of the machine running under power, whether an inspection is possible, which accessories, centres and tooling are included, the condition of the CNC control and electrics, and loading and shipping arrangements.
Specs
Technical Specifications
Model: Junker BUAJ 30
Distance between centres: 630 mm
Centre height: 150 mm
Max workpiece weight: 120 kg
Working precision: IT4 ISO
Grinding disc diameter: Max. 400 mm
Grinding disc width: Max. 63 mm
Grinding disc bore: 127 mm
Grinding headstock motor: 5.5 kW
Grinding disc peripheral speed: Max. 45 m/sec
Grinding headstock adjustment travel: 300 mm
Grinding headstock swivel angle: +45° / –15°
Workpiece headstock taper: MK5
Workpiece spindle speed: 23–291, continuously variable
Workpiece headstock swivel angle: 90°
Tailstock quill taper: MK4
Tailstock quill stroke: 30 mm
Taper adjustment range: ±0.015 mm
Longitudinal travel: Max. 756 mm
Feed speed: 0–7.5 m/min
Upper table adjustment angle: ±8°
Cross travel: Max. 160 mm
Total power: 9 kVA
Total connected load: 10 kVA
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