4 Guide-way Giant Lathe

4 Guide-way Giant Lathe is a special type of flat bed lathe. It has one wide bed and 2 pairs of guide ways. Its tailstock and steady rests are placed on the pair of guide ways at the rear side. Thus, we would build the carriage across the 4 guide ways (called full length cross slide) as standard model; this model could stand for very heavy duty machining and has full cross slide travel.

Category: Mayday Machinery

Feature

Specification

Giant Heavy Duty Lathe : 52″ bed
Description Model	3A-70	3A-80	3A-90	3A-100
Center height	900 mm	1000 mm	1125 mm	1250 mm
Swing over bed	1800 mm (70.8”)	2000 mm (78.7”)	2250 mm (88.6”)	2500 mm (98.4”)
Swing over cross slide: Full Length (Std.)	1350 mm	1550 mm	1800 mm	2050 mm
Swing over cross slide: Half Length (Opt.)	1440 mm	1630 mm	1870 mm	2110 mm
Width of bed	1345 mm (52.9”) (1575mm with auxiliary guideway)
Distance between centers	3000 mm~15000 mm
Spindle nose / bore	A2-15 / Ø210mm (8”) or A2-20 / Ø260mm (10”)
Spindle speed (4 Steps)	6 ~400 rpm (Chucks are excluded)
Tailstock quill diameter	Rotary Quill Ø290 (Std.) or Ø350 (Opt.)
Taper of center	MT#7
Quill travel	300 mm
Cross feeds	0.065 ~ 0.96 ( 48 kinds )
Cross travel	1250 mm (Full Length) or 510mm (Half Length)
Longitudinal feeds	0.13 ~ 1.92 ( 48 kinds )
Compound rest travel	X1: 250mm / Z1: 350mm (Auto Feeding)
Tool size	50 X 50 mm
Lead screw diameter	Ø60mm
Lead screw pitch	2TPI (inch) or 12mm (metric)
Threading range, metric	2 ~ 30 mm / Pitch ( 48 Kinds )
Threading range, inch	1 ~ 15 TPI ( 48 Kinds )
Module pitch threads	1 ~ 15 M ( 32 Kinds )
DP. pitch threads	2 ~ 30 P ( 48 Kinds )
Main spindle motor	75 HP (Std.) or 100 HP (Opt.)
Rapid motor	2 HP
Coolant pump	1 HP
Lubrication pump	12 W