SUN MASTER

High Speed Precision Lathe

RML-1440 / 1460 / 1640 / 1660

SPECIFICATION

ø80MM SPINDLE BORE (ML Series)  
HEAVY DUTY SPINDLE
  • Proven design on same models but with big spindle bore (80 mm) offering you more efficient, durable operation.
  • Spindle is made from forged alloy steel, hardened, ground & heat treated for dynamical balance.
  • The spindle is supported at three points by high precision taper roller and ball bearings keeping rigidity and accuracy.

APRON
  • R/H or L/H wheel available onup request.
  • Integrated automatic control for longitudinal,cross, forward and reverse feed.

GEAR BOX
Universal Gear box allows inch or metric dial. Turing M.P., D.P. threads without ger change.

HEADSTOCK
  • Housing is vibration resistance, deflection-free.
  • Gears are harened & MAAG or REISHAUER ground.

CARRIAGE & SLIDE
  • Anti-Float design backlash eliminator fitted in cross slide nut.
  • Safety clutch at feed shaft.
  • One shot lubrication in carriage & top slide.
  • Dual dials supply inch system screw.
  • Metric dial supply metric system only.
SAFETY FREATURE
  • Nylon safety gears in end train.
  • Shear pin in leadscrew.

  • E.V.S models with auto lubrication system for headstock. External tank is for oi cooling.
  • All models are one piececast iron constructed.
  • All models are with universal feed gearbox & reversable apron.
  • All models comply with CE.(on request)
  • All models' spindle bore is 80mm (3.149")
  • Spindle type:ASA D1-6
  • All models' cross slide are handened and ground, prolonging machine life time.
STANDARD ACCESSORIES
  • 3-jaw chuck
  • (9" for RML/CL; 10" for ML)
  • Stready rest
  • Full length splash guard
  • Halogen working light
  • Coolant system
  • Back plate for chuck
  • Dead center
  • Spindle center sleeve
  • Level pads x 6 pcs
  • Tool set and box
  • Operation manual & parts list
OPTIONAL ACCESSORIES
  • EVS system
  • (Electrical variable speed system)
  • 4-jaw chuck
  • (9" for RML / CL; 10" for ML)
  • 5C collet closer attachment
  • Driving plate with dog 10"
  • Chuck safety guard
  • Electrical system for CE
  • Protect cover on lead screw
  • Tool post safety guard
  • Taper turning attachment
  • Face plate 12"
  • Drill chuck & arbor 1/2"
  • Rotating center MT# 4
  • Quick change toll post
  • Carriage micro stop set
  • Digital read out system
  • Follow rest
MODEL RML-1440 RML-1460 RML-1640 RML-1660
Capacity
Height of centers 180 mm (7.08") 205 mm (8.07")
Swing over bed Ø360 mm (14.17") Ø410 mm (16.14")
Swing in gap Ø533 mm (20.98") Ø583 mm (22.95")
Swing over cross slide Ø214 mm (8.42") Ø264 mm (10.39")
Distance between centers 1000 mm (40") 1500 mm (60") 1000 mm (40") 1500 mm (60")
Width of bed 260 mm (10.236")
Gap width in front of faceplate 135 mm (5.31") 225 mm (8.85") 135 mm (5.31") 225 mm (8.85")
Headstock and Main Spindle
Spindle nose, internal taper D1-6, MT. No.6
Spindle center sleeve MT. No.6 x MT. No.4
Spindle bore Ø52.5 mm (2.066")
Spindle speed:
Gear steps / Range
8 steps 4P / 70~1800 R.P.M.
OPT.
16 steps
4P / 8P
/
8P 40~1000 R.P.M.
4P 80~2000 R.P.M.
Carriage
Cross slide travel 220 mm (8.6")
Top slide travel 130 mm (5.1")
Threads and Feeds
Whitworth threads: Kinds / Range 45 Kinds / 2~72 T.P.I.
Metric threads: Kinds / Range 39 Kinds / 0.2~14 mm
D.P. threads: Kinds / Range 21 Kinds / 8~44 D.P.
M.P. threads: Kinds / Range 18 Kinds / 0.3~3.5 M.P.
Longitudinal feeds 0.05~1.7 mm (0.002"~0.067")
Cross feeds 0.025~0.85 mm (0.001"~0.034")
Tailstock
Quill diameter Ø52 mm (2.047")
Quill travel 152 mm (6")
Taper of center MT. No.4
Motor
Main spindle 5HP4P OPT.5HP 4P / 2.5HP 8P
Coolant pump 1/8HP
Measurement
Weight (Net /Gross) Approx. 1350 kgs / 1500kgs 1450 kgs / 1600kgs 1400 kgs / 1550kgs 1500 kgs / 1650kgs
Packing sizes Length 2270 mm (89.4") 2785 mm (109.7") 2270 mm (89.4") 2785 mm (109.7")
Width x Height Width 1120 mm (44.1") x Height 1745 mm (68.7")