BT Machine Tool Test Bar

BT Machine Tool Test Bar

(Also known as:Spindle Test Bar,Machine Accuracy Inspection Rod,Precision Alignment Mandrel)

Product Overview

The Machine Tool Test Bar is a high-precision measuring instrument used to inspect spindle radial runout,axial movement,and concentricity.It serves as a core inspection tool in machine tool manufacturing,assembly,and maintenance processes.

Key Features

Ultra-High Precision:Straightness error≤0.002mm/m(Grade AA)

Multi-Material Options:

✓Chrome-molybdenum alloy steel(Hardness HRC58-62)

✓Tungsten carbide(Extreme wear-resistant applications)

✓Ceramic material(Thermal deformation coefficient<0.5μm/°C)

Modular Design:Extendable adapter rods for different spindle depth inspections

Thermal Stability:Special heat treatment ensures±0.001mm/10°C temperature drift control

Typical Applications

✔Radial runout detection of machining center spindles

✔Lathe spindle and tailstock concentricity calibration

✔Grinding spindle axial movement measurement

✔Robot 7th-axis installation positioning verification

Technical Specifications

Diameter range:Ø50mm-Ø300mm(Custom sizes available)

Taper compatibility:ISO/BT/CAT/DIN standard tapers

Surface treatment:Ultra-precision grinding(Ra≤0.1μm)+anti-rust coating

Certification:Complies with VDI/DGQ 3441 machine tool inspection standards

Usage Guidelines

Require 4+hours thermal stabilization in constant-temperature environment before inspection

Must be used with 0.001mm resolution dial indicators

Should be stored vertically to prevent deformation under self-weight

Regular laser interferometer calibration recommended(12-month cycle)

Industry Solutions

Automotive production:Integrated crankshaft machine online detection systems

Aerospace:5-axis machine tool accuracy verification kits

Mold manufacturing:Micron-level electric spindle comprehensive inspection solutions

(Note:All specifications subject to final technical agreement.CNAS-certified calibration reports available.)

This professional-grade inspection instrument represents the highest standard in modern machine tool accuracy verification,suitable for precision control requirements from traditional manufacturing to smart factories.

Specification: 100 * 150 * 30~700 * 1000 * 65 (millimeters) Accuracy: Level 0, Level 1, Level 2, Level 3.