Auto-Feeding MFDC Projection Welder for Piston Rod Ring Assembly

Name: Auto-Feeding MFDC Projection Welder for Piston Rod Ring Assembly
Brand: Chengdu Xinwei Welding Technology Co., Ltd.
Price: 22.00 USD
Availability: InStock

Quality Auto-Feeding MFDC Projection Welder for Piston Rod Ring Assembly factory

Basic Properties

Place of Origin:Sichuan, China

Brand Name:Xinwei

Certification:CE, RoHS, ISO

Trading Properties

Minimum Order Quantity:1 set

Price:$21,000-23,000 / set

Standard Packaging:wooden box

Delivery Time:25-35 working days

Payment Terms:L/C,D/A,D/P,T/T,Western Union

Supply Ability:10 sets per month

Specifications

Product Name:	Auto-Feeding MFDC Projection Welder For Piston Rod Ring Assembly	Primary Voltage:	220V/380V/415V
Rated Capacity:	40-250KVA	Rated Duty Cycle:	50%
Warranty:	1 Year	Weight (kg):	1900
Feature:	Welding Automatic Machine	Advantage:	Projection Welder
After Warranty Service:	Video Technical Support, Online Support And Spare Parts	After-sales Service Provided:	Free Spare Parts, Field Installation, Commissioning And Training
Highlight	3 Phase Automatic Spot Welder , 250KVA Automatic Spot Welder , Stainless Steel automatic spot welding machine

Product Description

Auto-Feeding MFDC Projection Welder for Piston Rod Ring Assembly

Heavy-Duty MFDC Projection Welding Workstation with Dual-Path Rod and Ring Auto-Feeding — Servo Force Control, 40-250KVA, Galvanized and Stainless Steel Capable

Feeding

Dual-Path Rod + Ring

Force Control

Servo / Proportional

Power

40 - 250 KVA

Application

Piston Rod Retaining Rings

Auto-Feeding MFDC Projection Welder for Piston Rod Ring Assembly

Why Piston Rod Ring Welding Demands Precision Force Control

Automotive piston rod assemblies present a unique welding challenge: the retaining ring must be projection-welded onto the rod with sufficient strength to withstand millions of load cycles in service, yet the heat input and electrode force must be precisely controlled to avoid distorting the precision-ground rod surface. A single over-pressurised weld can scrap a machined rod worth significantly more than the welding operation itself.

This Xinwei MFDC projection welding workstation solves the problem through three integrated systems. The dual-path automatic feeding system independently delivers rods and rings to the welding position. The servo or proportional valve force control system maintains the exact programmed electrode force throughout each weld cycle, compensating for part tolerances. The MFDC power source provides concentrated heat input with minimal spatter, protecting the rod surface finish while ensuring full-strength projection weld nuggets on galvanized and stainless steel materials.

Key Engineering Features

1. Dual-Path Independent Feeding: Rods and Rings Delivered in Sync

The system features two separate automatic feeding paths: one for piston rods and one for retaining rings. Each path independently singulates and positions its component. The synchronised delivery ensures that both parts arrive at the welding fixture in the correct orientation and sequence, ready for the projection welding cycle. This eliminates the manual coordination step that creates bottlenecks in semi-automatic stations.

2. Servo or Proportional Valve Force Control: Protecting Precision Surfaces

Unlike pneumatic-only systems where force can vary with air supply pressure, the servo or proportional valve system maintains closed-loop force control. The electrode applies exactly the programmed force, no more. This is critical for piston rods where the ground surface must remain undamaged. The system compensates for minor part thickness variations without exceeding the safe force window.

3. MFDC with Concentrated Heat Input: Strong Welds, Clean Surfaces

The Medium Frequency Direct Current power source (40-250KVA) delivers a precisely controlled waveform that concentrates heat at the projection contact points. This creates full-strength weld nuggets while minimising the heat-affected zone. For galvanized sheet components, the controlled heat input prevents excessive zinc burn-off that can compromise corrosion resistance. The result is a strong projection weld with a clean surrounding surface.

4. Complete Workstation: Integrated Feeding, Welding, and Quality Control

The 2600mm-long workstation integrates feeding, welding, and optional inspection into a single production cell. The intelligent HMI provides production monitoring, recipe management for different rod/ring combinations, and fault diagnostics. This turnkey approach means the cell can be deployed on the production floor with minimal integration engineering on the customer side.

Application Focus: Automotive Suspension and Steering Components

This workstation is purpose-engineered for the projection welding of piston rods to retaining rings in automotive suspension (shock absorbers, struts) and steering system components. The dual-path feeding, precision force control, and MFDC technology directly address the quality and throughput requirements of Tier-1 and Tier-2 automotive suppliers producing these safety-critical assemblies.

Technical Specifications

Parameter	Specification
Rated Capacity	40 - 250 KVA
Input Voltage	220V / 380V / 415V (3-phase)
Duty Cycle	50%
Welding Technology	MFDC Inverter (Medium Frequency DC)
Force Control	Servo or proportional valve (closed-loop)
Feeding System	Dual-path automatic: rods + rings
Welding Materials	Carbon Steel, Stainless Steel, Galvanized
Dimensions	2600 x 1600 x 1900mm
Weight	1900kg
Warranty	1 Year
Certifications	CE, RoHS, ISO