News
Exhibitions & Events
NEWS Ruiming Completes On-Site Customer Training for RANE Group in India in 2026
Ruiming engineers visited RANE Group in India for on-site installation, commissioning, hands-on training and process guidance for a fully automatic centering and pin pressing machine.
NEWS Ruiming's 2025 Annual Gathering
Our annual gathering reviewed the year's work, recognized outstanding employees and teams, and discussed priorities for the year ahead.
NEWS Ruiming at EMO Hannover 2025
Ruiming exhibited at EMO Hannover, Germany, discussing precision straightening, polishing and automation applications with international manufacturers and industry partners.
NEWS Ruiming's 2025 Team-Building Event
On August 2, 2025, Ruiming organized a team-building event to strengthen communication between departments through group activities and informal exchanges.
NEWS Ruiming at CME Shanghai 2025
Ruiming attended CME Shanghai 2025, presenting equipment and solutions for precision straightening, polishing, superfinishing and steering assembly.
NEWS Ruiming at MWCS 2025, China International Industry Fair
Ruiming attended MWCS at the 2025 China International Industry Fair, discussing precision processing and automation requirements with buyers, engineers and equipment integrators.
NEWS Ruiming Concludes a Productive CCMT 2024 Exhibition
CCMT 2024 concluded on April 12 after five exhibition days. According to venue admission data cited in the original report, April 8-12 recorded 239,318 entries.
NEWS CIMT 2023 Beijing Concludes: See You in Shanghai in 2024
The 17th China International Machine Tool Show (CIMT 2021) took place in Beijing from April 12 to 17, 2021, under the theme of cooperation and intelligent manufacturing. The year in this archived article's body differs from its title and requires verification.
NEWS Changchun University of Technology Recognizes Ruiming as a Student Employment, Entrepreneurship and Internship Base
NEWS CIMT 2021 Concludes: Ruiming Looks Forward to Seeing You in 2023
CIMT 2021 opened at 10 a.m. on April 12 at the China International Exhibition Center's new venue in Beijing. Ruiming joined industry colleagues at the event, organized by the China Machine Tool & Tool Builders' Association.
NEWS Ruiming Invites You to the 25th China International Small Motor Technology Seminar & Exhibition
The 25th China International Small Motor Technology Seminar & Exhibition was scheduled for November 2-4, 2020, at Shanghai Everbright Convention & Exhibition Center, with approximately 800 standard booths and over 18,000 m² of exhibition space.
Technical Articles
How Straightening Machines Work
Automatic straightening machines measure and correct bending in shafts and bars after heat treatment. They combine mechanical, electrical, hydraulic, pneumatic and computer-based measurement and control technologies.
TECHComponents of a Straightening Machine
The control system combines an industrial computer, straightening software and a clear parameter-setting interface to support different workpieces. The servo system provides the straightening drive.
TECHFeatures of Straightening Machines
The computer uses displacement measurements to calculate shaft bending and the required correction stroke. Servo control enables a fast response, while software provides self-learning stroke control and wear compensation.
TECHAdvantages of Servo Motors
Servo motors provide closed-loop position, speed and torque control. The archived article describes rated speeds generally around 2,000-3,000 rpm and overload capability for transient loads.
TECHStraightening Machine Safety Procedures
Before starting, inspect the electrical equipment and check for correct operation. Stop and arrange maintenance if a fault is found. Machine parameters are designed for the customer's requirements; unauthorized modifications are prohibited.
TECHAn Introduction to Straightening Machines
Straightening machines correct shafts and bars to achieve the required straightness or rotational accuracy, support assembly tolerances and reduce machining allowance for the next operation.
TECHHow Polishing Machines Work
Metallographic polishing balances material removal rate with the depth of surface damage. Coarser abrasives remove the damaged layer faster but may leave deeper damage; finer abrasives reduce damage but remove material more slowly.
TECHApplications of Testing Machines
Testing machines verify whether the quality or performance of a product or material meets its design requirements before use. Different machines measure different physical and mechanical properties.
TECHHow Riveting Machines Work
Radial riveting (JM type) and orbital riveting (BM type) differ in their mechanisms and tool paths. Both use controlled rolling deformation to form the rivet.
TECHTypes of Polishing Machines
This archived article classifies portable polishing machines by power source, function and operating speed. It discusses pneumatic and electric tools, combined sanding/polishing tools and simpler polishing devices.
Product Insights
C-EPS Assembly Line: Final Inspection Station
Final inspection station: checks steering column mounting hole spacing and the specifications of input-end splines and threads.
PRODUCTC-EPS Assembly Line: Intermediate Shaft Assembly Station
Intermediate shaft assembly station: assembles the steering column and ECU assembly with the intermediate shaft.
PRODUCTC-EPS Assembly Line: Noise Test Station
Noise test station: checks whether sound generated during workpiece rotation meets process requirements. Maximum output-end load torque: 60 N·m.
PRODUCTC-EPS Assembly Line: Performance Test Station
Performance test station: automatically tests forward and reverse no-load torque, sensor signal characteristics, input/output torque and current characteristics on electric power steering columns. Accepted workpieces receive a laser-marked identifier.
PRODUCTC-EPS Assembly Line: Motor Assembly Station
Motor assembly station: assembles the steering column assembly, motor, terminal block components and timing belt. Motor tightening torque: 14.7-21.6 N·m.
PRODUCTC-EPS Assembly Line: Upper Column Tube Assembly & Adjustment Lever Force Tester
Measures tilt force, tilt holding force, telescopic force and telescopic holding force with the adjustment lever open and closed. The source lists two lever release force values, 55 ±15 N and 65 ±15 N; their assignments require verification.
PRODUCTC-EPS Assembly Line: Lower Column & Controller Assembly Station
Assembles the lower column, lower-column end cap, controller bracket, controller assembly and column/steering shaft assembly. Lower-column press-fitting force: 14.71-39.23 kN. See the full article for further parameters.
PRODUCTC-EPS Assembly Line: No-Load Test & Sensor Calibration Machine
Performs no-load testing of the subassembly and sensor calibration. Maximum input torque: 10 N·m; speed: 12-25 r/min.
PRODUCTC-EPS Assembly Line: Run-In Tester
Runs in the worm and worm wheel at the specified torque, followed by wiring harness installation. Maximum worm drive torque: 10 N·m; maximum output-end drive torque: 60 N·m.
PRODUCTC-EPS Assembly Line: End Cap & Plunger Tightening Machine
Assembles the gearbox housing assembly, end cap and plunger assembly. End cap tightening torque: 3.5 ±0.3 N·m. The source lists plunger tightening torque as 20-23 kN; this unit requires verification.
PRODUCTC-EPS Assembly Line: Input/Output Shaft Insertion & Nut Tightening Machine
Assembles the input/output shaft and sensor assembly with a fine-thread hex nut. Nut tightening torque: 34.7-57.1 N·m.
PRODUCTC-EPS Assembly Line: Worm Assembly Insertion & Retaining Plug Staking Machine
Assembles the gearbox housing, worm assembly and retaining plug. Retaining plug tightening torque: 35 ±2 N·m. Six-point staking force: 13-18 kN.
PRODUCTC-EPS Assembly Line: Gearbox Bracket, Bearing & Retaining Ring Insertion Machine
Assembles the gearbox housing, bracket bushing, guide bushing, four-point contact ball bearing, retaining ring and bearing locating ring. Four-point contact bearing press-fitting force: 5 kN.
PRODUCTC-EPS Assembly Line: Worm Assembly Press
Assembles the worm, deep-groove ball bearing, self-aligning bearing, connecting shaft and locking screw. Bearing press-fitting forces: 1-5 kN each; connecting shaft force: 5-15 kN. See the full article for further parameters.
PRODUCTAn Introduction to MSG Assembly Lines
At the time of this archived report, seven MSG steering assembly lines had been produced, with a normal cycle below 30 seconds. Data management supports production tracking, monitoring and traceability.
PRODUCTAn Introduction to Automotive Steering Assembly Lines
These intelligent assembly lines support semi-automatic and automatic assembly of steering systems, improving efficiency and reducing nonconforming output while enabling process monitoring and traceability.
PRODUCTPolishing Workpiece Examples
Polishing Workpiece Examples
PRODUCTStraightening Workpiece Examples
The workpieces shown can be straightened according to customer requirements.
PRODUCTFinishing Line: Polishing Machine
Nylon-fiber polishing wheels finish shaft surfaces, reducing roughness and creating an axial lay. The archived article describes benefits for seal and pressure-pad wear and workpiece service life, with single-, dual- and triple-wheel configurations.
PRODUCTFinishing Line: Deburring Machine
A high-speed abrasive belt deburrs rack tooth ends. Automatic centering, tooth-surface detection, loading and unloading improve efficiency and reduce manual handling. The machine can be linked with other equipment.
PRODUCTAn Introduction to Rack Finishing Lines
The automated rack finishing line transfers racks from the broaching machine through successive finishing operations to final oiling, ready for assembly.