Used Junker BUAJ 30 CNC Cylindrical Grinder | A.K. Machine Traders, Navi Mumbai, India

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

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

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.