Blog - StraighteningTech

How to make good Bolt with straightener

In modern industrial production, bolts are an important fastener, and their quality is directly related to the safety and reliability of the product. However, during the production and use of bolts, bending deformation may occur due to various reasons, which not only affects the appearance of the bolts, but may also cause them to fail to function properly. In order to solve this problem, as a fully automatic straightening machine manufacturer, we are committed to providing customers with efficient and

Straightening Technology

Straightening Sample Test and Acceptance Guide

Plan a straightening sample test, FAT and SAT with representative parts, agreed gauges, measurable acceptance criteria, traceable results and clear release gates.

Automated Bolt Straightening Solution

In the fastener manufacturing industry, bending in long bolts after heat treatment is a universal pain point. Traditional “manual hammering” is not only inefficient but also fails to guarantee consistent precision. This article shares a specialized Automated Bolt Straightening Solution: demonstrating how automation helped an Indian client transition from an “8-person manual” to a “one-person, multi-machine” production model while consistently achieving straightness within 0.1mm. What is the Bolt？ Bolts are foundational fasteners for the machinery, construction, and automotive industries. The

Straightening Technology

Shaft Straightness vs Runout vs TIR

Learn how shaft straightness, circular runout, total runout and shop-floor TIR differ—and what datum, probe path and acceptance method a straightening project needs.

Compact roller straightening machine processing long steel nails

Fasteners & Tools

Long Nail Straightening Solution

A practical roller-straightening solution for Ø4–6 mm long nails, covering plain and threaded shanks, wheel selection, simple changeover, jam prevention and final checking.

Connecting Rod Sleeve Straightener Solution

The straightness of a connecting rod sleeve (extension bar) directly impacts the concentricity and operational stability of power tools or assembly systems. Starting from technical pain points, this article provides an in-depth analysis of key techniques for straightening slender sleeves with a 6.35mm diameter and 200mm length. We explore deformation control for extreme length-to-diameter ratios, automated bulk feeding technology (arbitrary placement with automatic orientation), and servo-precision straightening algorithms. Through detailed technical insights and real-world cases, we demonstrate how this customized

Drive shaft straightening station engineering concept illustration

Shafts & Rotating Parts

Drive Shaft Straightening Solution

Engineer drive shaft straightening around hollow-tube protection, functional datums, multi-point runout, yoke or flange phase and the downstream balancing sequence.

Straightening Technology

How to Select Measuring Datums for Stepped Shafts

Select a defensible measuring datum for stepped-shaft straightening by separating the drawing datum, functional axis, machine supports, rotation method and customer acceptance gauge.

Automatic steering rack straightening machine processing toothed rack shafts

Shafts & Rotating Parts

Automatic Steering Rack Straightening Solution

A drawing-based steering rack straightening solution for asymmetric and toothed sections, covering datum selection, profile-aware measurement, controlled pressing and final verification.

Worm shafts in an automatic measuring and press-straightening station

Shafts & Rotating Parts

Small Motor Worm Shaft Straightening Solution

A closed-loop measurement and press-straightening solution for slender motor worm shafts, including datum selection, springback control and protected features.

Engineering illustration of an automatic gearbox shaft measurement and press straightening station

Shafts & Rotating Parts

Gearbox Shaft Straightening Solution

A gearbox shaft straightening solution must measure journals and gear pitch diameter separately, protect teeth and radial holes, control springback and remeasure every critical station.

Fasteners & Tools

Long Ball Stud Straightening Solution

A manufacturing-stage-specific solution for straightening long ball stud blanks while protecting the ball head, transition, flats and finished surfaces.