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CH-740/870

home > products > Precision Heavy-Duty Lathe > CH-740/870
    • 12 steps spindle speed to shorten the processing time of all size workpieces. (4 steps for variable series)
    • 104mm spindle bore with TIMKEN ball bearings which is suitable for heavy cutting.
    • Clutches installation in headstock help to operate easier and save electricity.
    • Electromagnetic braking system is faster and safer than normal system.
    • Stand-alone electrical box with overload protection device is easier to maintain and safety.
    • No need to exchange the gear while switching the system by using this common use gearbox which also has advantages like with low noise, safety cutting protection device on gear and using cycling lubrication system.
    • All the gears in headstock are carburized by heat treatment and grinded accurately in order to extend life of lathe.
    • Tailstock with 2 speed gearbox which is much suitable for drilling work.
    • Auto feeding system and closed-type oil immersion system which provides better lubricating results in Apron.
    • Bed is grinded accurately and by high-frequency heat treatment.
    • Foot emergency stop device which could also cut off the main power at the same time to ensure the safety of the operator and lathe.
    • Gap could be removed accordingly to machining larger workpieces.
  • SPECIFICATIONS Unit
    Lathe Center height mm
    Swing over bed mm
    Swing over gap mm
    Swing over cross slide mm
    Distance between centers mm
    Bed width mm
    Bed length mm
    Spindle Spindle bore diameter mm
    Spindle nose  
    Spindle taper  
    Spindle speed RPM
    Spindle speed* Variable series RPM
    Carriage Cross slide travel mm
    Tool holder travel mm
    Cutting tool size mm
    Tailstock Spindle diameter mm
    Spindle travel mm
    Center taper  
    Threading & Feeding System  
    Leadscrew pitch mm / pitch
    Metric pitch threads mm / pitch
    Inch pitch threads TPI
    Module pitch threads M.P.
    Pitch thread diameter D.P.
    Longitudinal feeds mm / rev.
    Cross feeds mm / rev.
    Motor Main motor HP
    Inverter motor* Variable series HP
    Rapid traverse motor HP
    Coolant pump motor HP
    Floor space ( Length x Width ) cm
    Net weight kgs
    Pallet size ( Length x Width x Height ) cm
    740x1500
    ( V )
    740x2000
    ( V )
    740x3000
    ( V )
    740x4000
    ( V )
    870x1500
    ( V )
    870x2000
    ( V )
    870x3000
    ( V )
    870x4000
    ( V )
    370 435
    740 870
    960 1,100
    520 590
    1,500 2,000 3,000 4,250 1,500 2,000 3,000 4,250
    420
    2,590 3,090 4,160 5,700 2,590 3,090 4,160 5,700
    104
    A 1-11 or D1-11
    108 x 1:20
    20~1,200 (12 steps)
    H:424~1,200、M:146~423;52~145、L:20~51 (4 steps)
    420 550
    230
    25 x 25
    77
    178
    MT#5
    Metric、Inch、Mixed
    6
    0.5~14 (31kinds)
    2~56 (45kinds)
    0.25~7 (23kinds)
    4~112 (43kinds)
    0.03~0.73
    0.01~0.3
    15
    20
    1/2
    1/8
    298*122 350*122 437*122 572*122 298*128 350*128 437*128 572*128
    4,100 4,300 4,800 5,100 4,300 4,500 5,000 5,300
    312*146*197 364*155*197 458*155*197 585*155*197 312*146*200 364*155*200 458*155*200 585*170*200
    ※Specification is subject to change without prior notice.
  • STANDARD ACCESSORIES
    1. Fixed center MT#5
    2. Coolant system
    3. Work Light
    4. 12" 3-jaw chuck with plate
    5. Steady rest
    6. 4-way tool post
    7. Electric Bracket
    8. Rapid Traverse for Longitudunal
    9. Clutch for spindle
    10. Tool box with tool kits
    11. Pad
    OPTIONAL ACCESSORIES
    1. 4-jaw chuck
    2. Full length splash guard
    3. Rotation center MT#5
    4. Face plate
    5. Drive plate
    6. Taper attachment
    7. Follow rest
    8. CE device
    9. DRO
    10. Quick change tool post
    11. 6-Postion bed stop


No. 57 , Aly 150, Ln 516, Sec 2, Xinan RD., Wuri Dist., Taichung City 414, Taiwan(R.O.C.)
Tel : 886-4-23354645-6 Fax: 886-4-23352545
E-mail: clmachine@tw-charles.com

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