Product Overview

In modern CNC manufacturing, rigid and repeatable workholding is just as critical as the cutting tool itself. The GT Precision Modular Vise Series is engineered to meet the highest standards of accuracy and durability. Unlike traditional cast-iron vises that can flex under pressure, the GT series is constructed entirely from premium alloy steel. The "modular" aspect means that all external surfaces (base, sides, and ends) are precision-ground to exact tolerances. This allows machinists to use a single vise for standard jobs, or seamlessly gang multiple vises together on a machine table or horizontal tombstone to clamp long extrusions or run multiple parts simultaneously with perfect alignment.

Key Features & Advantages

• Comprehensive Size Range: We offer a complete lineup to fit any machine envelope and workpiece size:

• GT100 & GT125: Ideal for small to medium VMCs and tight workspaces.

• GT150A & GT150B: The industry standard for general CNC milling (150mm / 6-inch jaw width).

• GT175, GT200 & GT300: Heavy-duty vises designed for large horizontal machining centers and massive workpieces.

• Extended Opening Capacities: Available in various jaw opening lengths (e.g., 150x200mm, 150x300mm, 200x300mm) to accommodate oversized plates and blocks without needing a larger vise body.

• Anti-Lift Mechanism: The movable jaw features a specialized pull-down mechanism (often a spherical segment or angled wedge). As clamping force is applied, the jaw is actively pulled down against the bed, completely eliminating workpiece lift and ensuring perfect parallelism.

• Extreme Precision & Durability: Manufactured from premium alloy steel (20CrMnTi), case-hardened to HRC 58-62, and precision-ground. The vise delivers a parallelism and squareness accuracy of 0.005mm/100mm (0.0002").

• High Clamping Force: The robust, fully enclosed lead screw and thrust bearing design translates minimal wrench torque into massive, rigid holding power, preventing part movement during aggressive heavy roughing operations.

Why Partner with Pingyuan Zhenghao Machinery?

• Direct Manufacturer Savings: Source premium modular CNC vises directly from our factory, bypassing trading companies for highly competitive wholesale pricing.

• Complete Workholding Ecosystem: We supply not only the GT vises but also a full range of accessories, including quick-change jaws, machinable soft jaws (aluminum/steel), step jaws, work stops, and alignment keys.

• Custom Solutions: Need a specific bed length or custom jaw configuration? Our engineering team can manufacture modified vises to suit your specialized production lines.

• Strict Quality Control: Every GT vise undergoes rigorous 3D CMM inspection for squareness, parallelism, and clamping repeatability before shipment.

Frequently Asked Questions (FAQ) - Selection Guide

Q1: What is the difference between GT150A and GT150B?

A: Both models have a 150mm (approx. 6-inch) jaw width. The difference typically lies in the overall length of the vise body and the maximum opening capacity. For example, a GT150A might have a standard opening (e.g., 200mm), while a GT150B might feature an extended base allowing for a larger opening (e.g., 300mm) to hold longer parts. Always check the specific dimensional drawings for exact capacities.

Q2: Can I mount these vises on their side or end?

A:Yes. The "modular" design of the GT vise means that the base, sides, and ends are all precision-ground to be perfectly square and parallel to each other. You can mount the vise flat on its base, upright on its side, or even vertically on its end, making it incredibly versatile for 4-axis, 5-axis, and tombstone machining setups.

Q3: How do I align multiple GT vises perfectly on my CNC table?

A: Because the vises are precision-ground to identical dimensions, aligning them is straightforward. The most common method is to place precision locating keys (T-slot nuts) into the longitudinal keyways on the bottom of the vises, which align them with the machine table's T-slots. You then use a dial indicator to sweep the fixed jaws to ensure they are perfectly parallel to the machine's X-axis before final tightening.

Q4: Are the jaws interchangeable?

A:Yes. The jaws on the GT series are bolted on and can be easily removed. You can swap the standard hardened smooth jaws for serrated jaws (for roughing), step jaws (for holding thin plates), or machinable soft jaws (for holding round or complex profiles).

Maximize your CNC machine's versatility and clamping precision with our complete range of GT Modular Vises.

Contact our sales engineering team today for a complete catalog, dimensional drawings, and bulk pricing.