YUNNAN Gap Bed Manual Lathe CY6250B CY6266B CY6276L

Characteristic

The headstock gear-box, apron and bed-ways are made of high quality casting iron, and are all casting with the resin sand foundry technology and aging process. The bed ways are induction-hardened, with hardness around HRC 52. The spindle supported by 3-pointed high-precision bearings and all gears in headstock are precisely grinded, the spindle turns smoothly at high speed. High rigidity spindle system, with absolute temperature rising no higher than 35*C . Rapid feed system to improve efficiency. Wide range of feed and pitch are available without changing gears, distance between centers 1000 - 5000mm, this lathe covers wide range of working pieces. When rapid feeding is on, the tool slide longitudinal travel hand-wheel will be automatically disfunctioned. Reliable safety devices such as footbrake and emergency power-off switch are assembled. Adjustable overload protection device is also installed in the feed system. The tool post adopts the structure of ratchet pawl, and can be relocked by turning the lever for just half a lap. Tailstock are equipped with double-locked mechanism, smooth and effortless movement is ensured by the elastic scroll devices underneath.

item	unit	CY6250			CY6266				CY6276L
		A	B	L	B			L
swing over bed	mm	500			660				760
swing over cross slide	mm	300			430				530
Dis. between centers	mm	1000/1500/2000/3000mm
spindle nose		C6	D8
Stander 3-jaw chuck		K11250C/C6	K11250C/D8	K11325C/D8			K11325C/D8		K11325C/D8
Spindle  diameter	mm	52	82	105	82			105	105
spindle speed	rpm	9-1600 24steps	9-1600 (24step)	6-1120 (24steps)	9-1600 (24steps)			6-1120 (24steps)	6-1120 (24steps)
Spindle max output torque(30mins)	N.M	1400		2000		2000
range of longitudinal feed	mm/rev	0-028- 6.43	0-028- 6.43	0.063- 6.43	0-028- 6.43			0.063- 6.43	0.063- 6.43
range of cross feed	mm/rev	0.012- 2.73	0.012- 2.73	0.012- 2.73	0.012- 2.73			0.027- 2.73	0.027- 2.73
metric threads	mm	0.5-224 (48kinds)	0.5-224 (48kinds)	1-224 (46kinds)	0.5-224 (48kinds)			1-224 (46kinds)	1-224 (46kinds)
Inch system threads	T.p.i	72-1/8in(46kinds)	72-1/8in(46kinds)	28-1/8in(42kinds)	72-1/8in(46kinds)			28-1/8in(42kinds)	28-1/8in(42kinds)
module threads		0.5-112(42kinds)
Dia.pitch threads	Dp	56-1/4(45kinds)
Main motor	kw	7.5	7.5	11	11
cross slide travel	mm	340			370
Top silde travel	mm	145			200
longitudinal rapid traveling speed	m/min	4.5			4.5
transversal rapid traveling speed	m/ min	1.9			1.9
tailstock quill diameter	mm	75			75
Max travel of tailstock quill	mm	150			150
Taper of tailstock spindle		M5			M5
Cutter size	mm	25*25			25*25
Machine size	mm	2500/3000/3500/4500*1150*1300			2500/3000/3500/4500*1250*1400(76L:+100 on height)
Net/gross weight	kg	2540/2100 2860/2400 3200/2800 4000/3800			2800/2200 3000/2500 3400/2900 4200/3400(76L:+100 on both)
Wroking roundness		0.01
Working cylindricity		0.04/300
Working flatness		0.025/Φ300
Accuracy stander	GB/T4020-1997

Stander Configuration

1. 250mm 3-jaw chuck for 50B, 50L series;0325mm 3-jaw chuck for 66B, 66L, 76L series 2. Thread chasing dial 3. chip guard for L≤2m lathe,follow chip guard for L≤3m lathe 4. foot brake 5. oil gun 6. Live center 5# 7. center 5# 8. center sleeve

Optional Configuration

1. 630mm Face plate for 50 series 800mm Face plate for 66, 76 series 2. 400mm 4-jaw chuck 3. 20-140mm Small steady rest 4. 130-260mm Large steady rest 5. 2680mm Follow rest 6. 250mm Drive plate 7. 4-position stop for saddle 8. 4-position stop for cross slide 9. Micro stop for saddle 10. Quick change tool post 11. Damping washer 12. Taper turning attachment(TTA) 13. Halogen work lamp 14. Digital readout(DRO) 15. CE standard compliance 16. Chuck cover