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GMT-4000 Series
GMT-4000 is a CNC turn-mill platform with 8-axis control and simultaneous 5-axis machining. The GMT-4000L3 configuration provides Ø820 mm turning diameter and 3,055 mm turning length, with 500 mm Y-axis travel, a 240° B-axis, a 10,000 rpm milling spindle and a standard 40-tool magazine.
- Simultaneous 5-axis machining for complex contours and angled features
- Ø820 mm turning diameter and 3,055 mm turning length on GMT-4000L3
- Standard 40-tool magazine, with optional 80 or 120 positions
Brand:
- GOODWAY
Overview
GMT-4000 Multi-Tasking CNC Turn-Mill Center
GMT-4000 combines turning and milling for large components that require several machining operations. Coordinated B, C, X, Y and Z movement enables simultaneous 5-axis contour machining and access to features at different angles.
The GMT-4000L3 configuration offers Ø820 mm maximum swing and turning diameter, with a turning length of 3,055 mm. X-axis travel is 900 mm, Y-axis travel is 500 mm (±250 mm), and Z-axis travel is 3,125 mm.
The turning spindle provides 28.3 kW continuous output and a maximum speed of 3,320 rpm. The milling spindle delivers 34 kW continuously and reaches 10,000 rpm, with a 240° B-axis range from −30° to +210°. The S configuration adds a second turning spindle with the same specifications as the first.
A chain-type tool magazine and arm-type automatic tool changer provide 40 tool positions as standard, with 80 or 120 available optionally. Oil circulation cools the turning and milling spindles. An optional servo-positioned, self-centering steady rest supports long workpieces, while an optional thermal compensation system extends temperature-related correction capabilities.
Key Features – GMT-4000 Series
Simultaneous 5-Axis Machining
Coordinated B, C, X, Y and Z motion supports complex contours and machining at multiple approach angles.
500 mm Y-Axis Travel
Travel of ±250 mm from the spindle center provides access to off-center features on larger components.
10,000 rpm Milling Spindle
The milling spindle combines 34 kW continuous output with HSK-T100 or Capto C8 tooling interfaces.
40-Tool Automatic Tool Changer
The standard magazine holds 40 tools, with optional 80 or 120 positions for more extensive machining sequences.
Promo Video – GOODWAY GMT-4000
Technical Specifications
Capacity, Travel and Axis Control
|
Category |
Specification |
Unit |
GMT-4000L3 / Options |
Availability |
|---|---|---|---|---|
|
CAPACITY |
Max. swing diameter |
mm |
Ø820 |
Model specification |
|
CAPACITY |
Max. turning diameter, milling-spindle configuration |
mm |
Ø820 |
Model specification |
|
CAPACITY |
Max. turning length |
mm |
3,055 |
Model specification |
|
LINEAR AXES |
Max. X-axis travel, milling spindle |
mm |
900 |
Model specification |
|
LINEAR AXES |
Max. Y-axis travel, milling spindle |
mm |
500 (±250) |
Model specification |
|
LINEAR AXES |
Max. Z-axis travel |
mm |
3,125 |
Model specification |
|
B-AXIS |
Travel |
° |
240 (−30 to +210) |
Standard |
|
B-AXIS |
Angle encoder resolution |
° |
0.001 |
Standard |
|
B-AXIS |
Drive mechanism |
– |
Direct-drive motor / roller cam |
According to configuration |
|
C-AXIS |
Control |
– |
Cf-axis servo control |
Standard |
|
C-AXIS |
Continuous torque |
Nm |
2,100 |
Series specification |
|
C-AXIS |
Minimum positioning increment |
° |
0.001 |
Series specification |
|
CONTROL |
Controlled axes |
axes |
8 |
Series capability |
|
MACHINING |
Simultaneous machining |
axes |
5 |
Series capability |
Spindles, Tool Magazine and Equipment
|
Category |
Specification |
Unit |
GMT-4000L3 / Options |
Availability |
|---|---|---|---|---|
|
TURNING SPINDLE 1 |
Chuck size |
in |
15–24 |
According to configuration |
|
TURNING SPINDLE 1 |
Max. spindle speed |
rpm |
3,320 |
Model specification |
|
TURNING SPINDLE 1 |
Motor output, continuous |
kW |
28.3 |
Standard |
|
TURNING SPINDLE 1 |
Motor output, 40% rating |
kW |
32.3 |
Standard |
|
MILLING SPINDLE |
Max. spindle speed |
rpm |
10,000 |
Standard |
|
MILLING SPINDLE |
Tool interface |
– |
HSK-T100 / Capto C8 |
According to configuration |
|
MILLING SPINDLE |
Motor output, continuous |
kW |
34 |
Standard |
|
MILLING SPINDLE |
Motor output, 40% rating |
kW |
44 |
Standard |
|
MILLING SPINDLE |
Continuous torque |
Nm |
188 at 1,725 rpm |
Standard |
|
TURNING SPINDLE 2 |
Spindle and C-axis specifications |
– |
Same as spindle 1 |
Optional S configuration |
|
ATC MAGAZINE |
Tool capacity |
T |
40 (opt. 80 / 120) |
Standard / optional |
|
ATC MAGAZINE |
Max. tool diameter |
mm |
Ø260, adjacent pockets empty |
According to tool arrangement |
|
ATC MAGAZINE |
Max. tool length |
mm |
500 |
Series specification |
|
STEADY REST |
Servo-positioned self-centering steady rest travel |
mm |
2,280 |
Optional |
|
THERMAL CONTROL |
Thermal compensation system |
– |
Available |
Optional |
Notes
- The listed machining capacities and linear-axis travels refer to the GMT-4000L3 configuration.
- Motor power values are specified for continuous operation and for the 40% rating shown in the table.
- The S configuration includes a second turning spindle with the same spindle and C-axis specifications as spindle 1.
- Tools up to Ø260 mm require empty adjacent magazine pockets. Maximum tool length is 500 mm.
- The 80/120-tool magazines, self-centering steady rest and thermal compensation system are optional. B-axis drive and tooling interface depend on the selected configuration.
Applications
General machining
Mixed prototype and production work across sizes; flexible envelopes and quick changeovers speed setups, reduce handling, and keep output consistent day to day.
Capital goods
Industrial equipment components from plates and frames to precision shafts and housings; scalable platforms and stable processes preserve accuracy over long runs.
Energy
Pump and valve components, compressor parts, and auxiliary housings; controlled cutting and chip/coolant management help protect tolerances, surface finish, and tool life.
Oil & Gas
Valve bodies, manifolds, housings, and high-integrity flanges; robust machining strategies and chip/coolant control help maintain tolerances in demanding alloys.
Wind energy
Drivetrain and auxiliary components including hubs, seats, flanges, and structural parts; rigid setups and stable processes sustain accuracy, finish, and tool life across long runs.
Railway
Frames, brackets, axlebox housings, and brake components; rigid machining and effective chip evacuation keep geometry and flatness consistent on large parts.
Defense
Housings, carriers, and structural parts in high-strength alloys; stable machining conditions and verified datums deliver repeatable accuracy under heavy cuts.