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GMT-4000 Series

GMT-4000 is a large-workpiece multi-tasking platform built for turning plus advanced milling in one setup. It supports B-axis and Y-axis machining with 5-axis simultaneous capability, a 500 mm Y stroke (±250 mm), chuck options from 15″ to 24″, and up to 3,055 mm turning length for oversized parts.

  • 5-axis simultaneous machining for complex large components
  • 500 mm Y stroke (±250) enables deep milling reach
  • Up to 3,055 mm turning length for long oversized parts

Brand:

  • GOODWAY

Overview

GMT-4000 Series Multi-tasking Machine (Large Work Range Mill Turn Center)

GMT-4000 Series is engineered for heavy, oversized workpieces where a single machine must cover turning and multi-face milling without repeated setups. The platform targets industries and parts that demand stable geometry and predictable throughput at large scale.

The machine is positioned as a multi-tasking solution with advanced axis coordination, including interpolation across key axes (B, C, X, Y, Z) and 5-axis simultaneous machining capability for complex features. This supports done-in-one strategies that consolidate operations and reduce handling risk.

For large-part flexibility, GMT-4000 provides substantial working reach, including a 500 mm Y-axis stroke (±250 mm) to access features that typically require secondary setups or different equipment. Combined with B-axis capability, this improves approach angles and feature coverage on complex geometries.

Capacity-oriented configuration options include chuck sizes from 15″ to 24″, a max swing diameter of Ø820 mm, and max turning length of 3,055 mm, allowing the platform to accommodate large diameters and extended parts within one stable process envelope.

Key Features – GMT-4000 Series

Multi-axis Interpolation

Coordinated B/C/X/Y/Z motion supports complex machining strategies.

5-Axis Simultaneous Capability

Enables multi-face milling on large parts with fewer setups and re-clamps.

Large Y-Axis Stroke

500 mm stroke (±250) improves reach for milling and off-center features.

Large-Part Turning Envelope

15″ to 24″ chuck options with Ø820 swing and 3,055 mm length.

Promo Video – GOODWAY GMT-4000

Specifications GMT-4000

Category

Item

Unit

Value

CAPACITY

Chuck size options

in

15 to 24

CAPACITY

Max swing diameter

mm

Ø820

CAPACITY

Max turning length

mm

3055

AXES

Y-axis stroke

mm

500 (±250)

AXES

B-axis travel

deg

240

CONTROL

Control capability

axes

8 axes

MACHINING

Simultaneous machining

axes

5-axis simultaneous

PROCESS

Supported processes

Turning plus multi-axis milling (multi-tasking)

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.

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