STC-Series

Swing37 – 60 in.
Centers80 – 200 in.
Bore6, 9, 12 & 15 in.
Bed Width49 in.

Overview

The extra heavy duty big bore spindle lathe offers spindle bores of 6”, 9”, 12”, 15”and 20” diameter for different sizes of materials. The center distance range from 60” to 315”. The machine bed is 49” wide. It is designed with 6 bedways. The cross slide and tailstock travels on separate bedways.

  • Swing over bedways: 38″, 40″, 50″, 60″, 70″
  • Bet centers: 40″, 60″, 80″, 120″, 160″, 200″, 240″, 315″.
  • Spindle bore: 6″ standard, 9″, 12″, 15″, 20″ optional
  • Spindle motor: 15 hp, 30 hp, 40 hp, larger hp available
  • Bed width: 49″ with 6 bedways.
  • Cross slide and tailstock travels on different bedways

Features

Three Points Support Headstock Spindle

The headstock casting is designed with one ball bearing and two tapered roller bearings supporting the full length of the spindle shaft.

Spindle bore sizes are available in 6”, 9”’ 12” , 15” and 20” Double chucks are available as options.

Gears and shafts are made from hardened and ground alloy steel, the spindle is made from forged, chrome alloy material.

One Piece Casting Bed/Base

The oversized 24” wide bedways are induction hardened and ground for long lasting accuracy.

One piece casting bedways and base offer rigidity and stiffness to the entire machine to enhance heavy cutting

6 Bedways Construction

The cross slide and tailstock travels on separate bedways to redistribute cutting forces on to the machine body. There are 6 bedways, 1 V way and 5 flat ways. One additional bedway supports just the apron. This design also avoids inference between cross slide and tailstock during certain machining process.

Large Selections Of Tool Posts

There are different types of optional turret tool posts to be mounted on the cross slide. There are 4 way, 6 way, 8, 12 positions hydraulic or motorized tool holding devices for different works.

Powered Tailstock and quill

The standard tailstock is equipped with a motorized  quill feed and motorized tailstock base travel.  Large hand crank allows convenient positioning of tailstock quill. Hydraulic tailstock lock along the bed is optional.

Specs / Models

Dimensions (STC-38200)InchMetric
Maximum Swing Over Bed37.8 in.960 mm
Distance Between Centers196.9 in.5001 mm
Spindle Bore6 in.
9 in.
12 in.
15 in.
152 mm
229 mm
305 mm
381 mm
Main Motor30 hp (Std.)
40 hp & 60 hp (Opt.)
22.37 Kw
29.82 Kw & 44.74 Kw
CNC ControlFANUC Oi-TDFANUC Oi-TD
Bed (STC-38200)InchMetric
Bed Way Construction2 V, 2 Flat Ways2 V, 2 Flat Ways
Width of Bed49.2 in.1250 mm
Length of Bed272 in.6908 mm
Travel (STC-38200)InchMetric
X-Axis Travel
(Varies by different turrets installed)
15.75 in.400 mm
Z-Axis Travel196.9 in.5001 mm
X-Axis Ball Screw Diameter1.57 in.40 mm
Z-Axis Ball Screw Diameter2.48 in.63 mm
Motor (STC-38200)InchMetric
Spindle Motor30 hp (STD Fanuc Alpha 22) Opt: 40 hp or 60 hp22.37 Kw (STD Fanuc Alpha 22) Opt: 29.82 Kw & 44.74 Kw
X-Axis Servo Motor5 hp3.72 kw
Z-Axis Servo Motor5 hp3.72 kw
Hydraulic Pump2 hp1.5 kw
Coolant Pump1.7 hp1.27 kw
Machine Weight (STC-38200)InchMetric
Weight47,300 lbs.21,455 kg
Dimensions (STC-38200)InchMetric
Length
(Length with Chip Conveyor)
31.58 ft.9.62 M
Width12.5 ft.3.81 M
Height7.41 ft.2.25 M
DimensionsSTC-4480STC-44120STC-44160STC-44200
Maximum Swing Over Bed44.1 in.
(1120 mm)
44.1 in.
(1120 mm)
44.1 in.
(1120 mm)
44.1 in.
(1120 mm)
Distance Between Centers78.7 in.
(2000 mm)
118.1 in.
(3000 mm)
157.5 in.
(4000 mm)
196.9 in.
(5001 mm)
Spindle Bore6 in. (152 mm)
9 in. (229 mm)
12 in. (305 mm)
15 in. (381 mm)
6 in. (152 mm)
9 in. (229 mm)
12 in. (305 mm)
15 in. (381 mm)
6 in. (152 mm)
9 in. (229 mm)
12 in. (305 mm)
15 in. (381 mm)
6 in. (152 mm)
9 in. (229 mm)
12 in. (305 mm)
15 in. (381 mm)
Main Motor30 hp (Std.) (22.37 Kw)
40 hp & 60 hp (Opt.) (29.82 Kw & 44.74 Kw)
30 hp (Std.) (22.37 Kw)
40 hp & 60 hp (Opt.) (29.82 Kw & 44.74 Kw)
30 hp (Std.) (22.37 Kw)
40 hp & 60 hp (Opt.) (29.82 Kw & 44.74 Kw)
30 hp (Std.) (22.37 Kw)
40 hp & 60 hp (Opt.) (29.82 Kw & 44.74 Kw)
CNC ControlFANUC Oi-TDFANUC Oi-TDFANUC Oi-TDFANUC Oi-TD
BedSTC-44120STC-44120STC-44160STC-44200
Bed Way Construction2 V, 2 Flat Ways2 V, 2 Flat Ways2 V, 2 Flat Ways2 V, 2 Flat Ways
Width of Bed49.2 in.
(1250 mm)
49.2 in.
(1250 mm)
49.2 in.
(1250 mm)
49.2 in.
(1250 mm)
Length of Bed261.8 in.
(6650 mm)
196.9 in.
(5001 mm)
236.2 in.
(6000 mm)
275.6 in.
(7000 mm)
TravelSTC-4480STC-44120STC-44160STC-44200
X-Axis Travel
(Varies by different turrets installed)
15.75 in.
(400 mm)
15.75 in.
(400 mm)
15.75 in.
(400 mm)
15.75 in.
(400 mm)
Z-Axis Travel196.9 in.
(5001 mm)
196.9 in.
(5001 mm)
196.9 in.
(5001 mm)
196.9 in.
(5001 mm)
X-Axis Ball Screw Diameter1.57 in.
(40 mm)
1.57 in.
(40 mm)
1.57 in.
(40 mm)
1.57 in.
(40 mm)
Z-Axis Ball Screw Diameter2.48 in.
(63 mm)
2.48 in.
(63 mm)
2.48 in.
(63 mm)
2.48 in.
(63 mm)
MotorSTC-4480STC-44120STC-44160STC-44200
Spindle Motor30 hp (22.37 Kw) (STD Fanuc Alpha 22) Opt: 40 hp or 60 hp (29.82 Kw & 44.74 Kw)30 hp (22.37 Kw) (STD Fanuc Alpha 22)
Opt: 40 hp or 60 hp (29.82 Kw & 44.74 Kw)
30 hp (22.37 Kw) (STD Fanuc Alpha 22)
Opt: 40 hp or 60 hp (29.82 Kw & 44.74 Kw)
30 hp (22.37 Kw) (STD Fanuc Alpha 22)
Opt: 40 hp or 60 hp (29.82 Kw & 44.74 Kw)
X-Axis Servo Motor5 hp (3.72 Kw)
(Fanuc AC servo)
5 hp (3.72 Kw)
(Fanuc AC servo)
5 hp (3.72 Kw)
(Fanuc AC servo)
5 hp (3.72 Kw)
(Fanuc AC servo)
Z-Axis Servo Motor5 hp (3.72 Kw)
(Fanuc AC servo)
5 hp (3.72 Kw)
(Fanuc AC servo)
5 hp (3.72 Kw)
(Fanuc AC servo)
5 hp (3.72 Kw)
(Fanuc AC servo)
Hydraulic Pump2 hp
(1.5 kw)
2 hp
(1.5 kw)
2 hp
(1.5 kw)
2 hp
(1.5 kw)
Coolant Pump1.7 hp
(1.27 Kw)
1.7 hp
(1.27 Kw)
1.7 hp
(1.27 Kw)
1.7 hp
(1.27 Kw)
Machine WeightSTC-4480STC-44120STC-44160STC-44200
Weight35,200 lbs.
(15,966 kg)
39,600 lbs.
(17,962 kg)
44,000 lbs.
(19,958 kg)
48,400 lbs.
(21,954 kg)
DimensionsSTC-4480STC-44120STC-44160STC-44200
Length
(Length with Chip Conveyor)
21.81 ft.
(6.64 M)
25.1 ft.
(7.65 M)
28.38 ft.
(8.65 M)
31.65 ft.
(9.64 M)
Width8.2 ft.
(2.49 M)
8.2 ft.
(2.49 M)
8.2 ft.
(2.49 M)
8.2 ft.
(2.49 M)
Height7.48 ft.
(2.27 M)
7.48 ft.
(2.27 M)
7.48 ft.
(2.27 M)
7.48 ft.
(2.27 M)

Accessories

Standard Accessories

  • Controller: Fanuc Oi TF
  • Flat belt conveyor
  • Spindle 4-steps speed auto change
  • X/Z axes auto lubrication system
  • Coolant system
  • X/Z-axes with Turcite-B on slideways
  • X/Z-axes C3 ballscrew
  • Manual tailstock, MT 6
  • Steady rest 16”
  • Full enclosure splash guard
  • Heat exchanger
  • Electronic handwheel (MPG)
  • Tailstock interference protection
  • Work lamp

Optional Accessories

  • 4 jaw chuck, different sizes
  • 3 jaw chuck, different sizes
  • 3 jaw hydraulic chuck, different sizes
  • Face plate with 4 jaws, different sizes
  • Steady rest , over 16”, different sizes
  • Follow rests, different sizes
  • Boring attachment for bar dia. 120mm                          
  • Spindle chiller
  • Rear chuck Adapter
  • Hydraulic turret 4-way turret
  • Hydraulic turret V-8 tools, includes boring toolholder 3 pcs, facing toolholder 1 pc and turret sleeve
  • Hydraulic turret V-12 tools, includes boring toolholder 3 pcs, facing toolholder 1 pc and turret sleeve
  • Tailstock base with hydraulic lock bolt

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