BHC 85 4000 CNC

BHC 85 4000 CNC

BHC 85 4000 CNC

Grinding of face surfaces can be performed by the side of grinding wheel or its circumferential surface with using grinding wheel head swivel.
Grinding machine series BHC can be used particularly in single-part and series production for grinding of workpieces up to 4000 kg (optionally 5000 kg – HD).

Highlights






Technical Info – Heavy Duty Grinding Machine

Technical Info
Parameters Units Design version
Working range
Swing diameter mm (in) 630 (24,8) / 850 (33,5) / 1000 (39,4) / 1200 (47,3)*
Distance between centers mm (in) 2000 (78,7) / 3000 (118,1) / 4000 (157,5) / 5000 (196,9) / 6000 (236,2)
Max. weight of workpiece – between centers kg (lb) 4000 (8800)
Max. weight of workpiece – between centers (heavy duty machine) kg (lb) 5000 (11000)
Max. weight of workpiece – with live spindle (incl. clamp) kg (lb) 400 (800) / HD 600 (1320)
Grinding unit – X Axis
Minimum programmable feed mm (in) 0,0005 (0,00002)
Maximum speed m.min⁻¹ (in/min) 10 (393,7)
Table – Z Axis
Minimum programmable table feed mm (in) 0,001 (0,00004)
Maximum speed m.min⁻¹ (in/min) 10 (393,7)
Grinding Wheel head
Grinding wheel dimensions (dia. × width × bore) mm (in) Ø 750 × 100 × Ø 305 (Ø 29,5 × 3,9 × Ø 12)
Diameter of worn-out wheel mm (in) Ø 570 (Ø 22,4)
Maximum grinding wheel width mm (in) 125 (4,92) / 210 (8,26) / 300 (11,8)
Grinding wheel peripheral speed m/s 10 – 50
Wheel head swivel ° +30 / −30
Wheel head motor power kW (hp) 18,5 (24,8) / optional 30 (40) / 37 (49,6)
Work head
Work head swivel ° 0 – 90
Work head swivel – heavy duty ° 0
Work head spindle taper bore Morse 6 / ISO 296-1991
Work head spindle nose A 2-6 / ISO 702-1-1992
Tailstock
Tailstock barrel taper bore Morse 6 / ISO 296-1991
Tailstock barrel stroke mm (in) 70 (2,8) / optional 100 (3,9)*
Cross motion of tailstock center – cylindrical correction mm (in) ±0,8 (0,031)
Tailstock clamping force N 300 – 20000
Other specifications
Length of machine mm (in) 8500 (335) / 10600 (417) / 13000 (512) / 15500 (610) / 18000 (709)
Width of machine mm (in) 4400 (173)
Height of machine mm (in) 2550 (100)
Weight of machine kg (lb) 17000 (37400) / 20000 (44000) / 23700 (52140) / 26000 (57200) / 28000 (61600)
Control system SINUMERIK ONE / Siemens 828D sl
Drives Sinamics
Ball screws KSK Kuřim
Cooling and filtration Astos Aš / UMT LEHMANN
Lubrication Tribotec
Pneumatic equipment FESTO
Machine working accuracy according to ISO 2433 (depending on grinding materials and machining technology)
Machine working accuracy (without in-process gauge) IT 4
Surface roughness Ra 0,2 (0,05)
Roundness of workpiece mm (in) 0,002 (0,0001)


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