Vise Block with Insert 3.5 Inch for Vermeer HDD | Part 285754001
The 3.5″ Vise Block with Insert is a heavy-duty breakout assembly designed for large-scale Horizontal Directional Drilling (HDD) operations. Engineered for Vermeer D50x100 and D80x100 series drills, this assembly features a high-tensile block housing and a precision-hardened replaceable insert, ensuring a secure, non-slip grip on 3.5″ drill pipes during high-torque make-up and break-out sequences.
Description
Comprehensive Technical Data
Industrial Breakout Engineering
On large HDD rigs, the breakout system must handle immense rotational and clamping forces. Our 3.5″ Vise Block is built to survive these stresses:
High-Strength Block Body: The main block is forged from high-grade alloy steel, through-hardened and tempered to provide a stable foundation that resists deformation under hydraulic pressure.
Precision Replaceable Inserts: The inner insert features an aggressive tooth geometry designed to bite through drilling fluids, heavy mud, and surface contaminants for a fail-safe mechanical lock.
Specialized Heat Treatment: Both the block and the insert undergo a meticulous Quench & Temper process to achieve the perfect balance of surface hardness (58-62 HRC) and core toughness.
Technical Specifications Table
| Property | Specification |
| Pipe Size Compatibility | 3.5 Inch (88.9 mm) |
| OEM Reference P/N | 285754001 |
| Compatible Models | Vermeer D50x100, D50x100 S2, D80x100, D80x120 |
| Material Grade | Forged Alloy Steel (AISI 4140/8620) |
| Hardness (Inserts) | 58-62 HRC |
| Construction | Hardened Block + Replaceable Serrated Insert |
Key Performance Advantages
Maximum Torque Transfer: Engineered to prevent “pipe skating,” which protects the drill stem threads from premature wear and galling.
Cost-Effective Maintenance: The replaceable insert design allows you to refresh the gripping surface without replacing the entire block assembly, significantly reducing operating costs.
OEM Interchangeability: Machined to exact tolerances to ensure a “drop-in” fit within the original Vermeer breakout cylinders.
Corrosion Resistance: Finished with a protective industrial coating to withstand harsh outdoor job sites and corrosive drilling additives.
Primary Applications
Large Diameter HDD: Essential for pipeline, water main, and gas infrastructure projects.
High-Torque Breakouts: Reliable performance for breaking stubborn or over-torqued connections in hard soil or rock drilling.
Field Servicing: Optimized for quick insert changes to keep the rig moving during high-production shifts.
Why Pan Oil Tools?
Pan Industries specializes in manufacturing high-performance HDD Vise Blocks & Inserts that withstand the most demanding utility and pipeline projects. Our 3.5″ Vermeer-compatible blocks are field-tested for reliability and durability. With 100% quality inspection and full material traceability, we provide the industrial-grade spares your fleet requires to maintain peak uptime.
Compatibility Disclaimer
Manufacturer names (Vermeer, D50x100, D80x100) and reference part numbers are used strictly for identification and cross-reference purposes. Pan Industries is an independent manufacturer and is not affiliated with, endorsed by, or licensed by Vermeer Manufacturing Company.
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