Used JOINT GTS-4080 Surface Grinder: Specifications and Production Capabilities
Author：JINYI Date：2026-04-10
The JOINT GTS-4080 is a high-precision surface grinder currently in stock and available for immediate inspection. Built for demanding tool room and production environments, this unit features a robust 5.5 kW spindle motor and 0.001mm feed accuracy. It is an ideal solution for shops requiring consistent surface finishes and tight tolerance control on hardened steel or cast iron components. Ready for immediate deployment to increase your precision flat-grinding capacity.
Core Specifications and Operational Impact
Understanding the technical parameters of the JOINT GTS-4080 is essential for verifying its fit within your production workflow. Below are the key specifications and their operational impact:
| Specification | Value | Production Impact |
|---|---|---|
| Spindle Motor Power | 5.5 kW | Delivers high torque for heavy-duty grinding without spindle stalling. |
| Grinding Wheel Size | Φ350 x 40 x Φ127 mm | Standard geometry supports deep cuts and extended wheel life between dressing cycles. |
| Spindle Speed | 1450 rpm | Optimized for standard abrasive wheel peripheral speeds to maintain surface integrity. |
| Feed Accuracy | 0.001 mm | Enables high-precision finishing, reducing rework and scrap rates. |
5.5 kW Spindle Power: Unlike lighter-duty grinders, the GTS-4080’s 5.5 kW motor supports aggressive material removal. This is critical for shops processing hardened tool steels or large surface areas where thermal buildup and motor load are key concerns.
0.001mm Feed Accuracy: This resolution is the benchmark for high-precision manufacturing. In production, it allows operators to hold tight dimensional tolerances on flatness and parallelism, reducing the need for secondary lapping or polishing.
Tooling Match and Part Fit
The JOINT GTS-4080 accommodates a variety of workholding solutions and part geometries. When evaluating this machine for your shop, consider the following:
- Part Geometry: Optimized for flat surface grinding, including plates, blocks, and die components.
- Material Compatibility: With the standard spindle configuration, it is highly effective for ferrous metals, including hardened steel, mild steel, and cast iron.
- Workholding: The table capacity is designed to accept standard electromagnetic or permanent magnetic chucks. Ensure your existing chuck dimensions align with the table size to maximize the effective grinding area.
How Key Specs Affect Machine Selection
Selecting the right grinder requires balancing capacity and precision. The JOINT GTS-4080 is a production-grade machine, built for consistent, drift-free operation.
If your production requires high throughput for medium-to-large parts, the 350mm wheel diameter provides the necessary peripheral speed to maintain cool cutting—vital for preventing surface burning or micro-cracking in heat-treated parts. The 1450 rpm spindle speed is calibrated to match standard vitrified grinding wheels used in most industrial applications.
Is This Machine Right for Your Production?
This machine is a strategic fit for your facility if you are facing the following production scenarios:
- Bottlenecked Grinding Capacity: You have a backlog of flat-surface parts and require an immediate, reliable machine to balance the load.
- Tolerance Requirements: Your current equipment cannot consistently hold tolerances below 0.005mm, and you need to upgrade to a 0.001mm feed resolution capability.
- Heavy-Duty Requirements: You are grinding large surface areas that cause lower-horsepower machines to stall or vibrate, compromising surface finish.
Frequently Asked Questions
What is the primary advantage of the 5.5 kW motor on this grinder?
The 5.5 kW motor provides high torque, allowing for deeper cuts and faster material removal without the spindle speed dropping under load. This is essential for maintaining consistent surface finishes on larger workpieces.
Can this machine hold a 0.001mm tolerance reliably?
Yes, the 0.001mm feed accuracy is a design specification intended for precision finishing. Achieving this in production depends on the condition of the grinding wheel, the rigidity of your workholding, and the thermal stability of your environment.
Is the JOINT GTS-4080 suitable for grinding non-ferrous materials?
While primarily designed for ferrous metals, it can be used for non-ferrous materials, provided the correct grinding wheel specification (grit, bond, and type) is selected to prevent wheel loading.
What should I check regarding the grinding wheel compatibility?
The machine uses a Φ350 x 40 x Φ127mm wheel. Ensure your inventory of wheels matches the arbor diameter (127mm) and that the wheel speed rating is compatible with the 1450 rpm spindle speed.
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