Automotive

Oil Filters and Relief Valves Welding

Dahching offers welding machines for Spin On Filter manufacturing.
Machine range from Manual to Automated, Single Phase AC to Capacitor Discharge DC and to Three Phase DC Inverter machines.

Spin-On Filter Cap is a good example of Resistance Projection welding.
An filter cap is formed by welding the stamping plate and seaming plate together.
The stamping plate is thicker, between 2mm to 4mm and has 8 to 12 embossments.
The seaming plate which is thin, often less than 2mm and galvanized.

DDIA-100-VLV

Current passing through flat electrode to join the Predetermined points on the weld part with the parent material.Learn More

Three Phase DC Inverter (MFDC)Learn More

Relief Valve Welding Assembly

Automated Projection Welder

A relief valve consists of small-cap, big-cap, U-shaped-cap, and a spring.
Automated assembly and welding process.
No extra work is required to pre-assemble the springs before welding.
Industrial 4.0 technology supported. Production analysis, machine efficiency, error data can be recorded and analyzed.

Specification

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DSA-150~250-PJ-OIL

DDIA-180~360-PJ-OIL

DSCA-15~30-PJ-OIL

Current passing through flat electrode to join the Predetermined points on the weld part with the parent material.Learn More

Three Phase DC Inverter (MFDC)Learn More

Spin On Filter Cap

Automated Projection Welder

This automated machine loads, welds, and unloads the Filter cap without operator manipulation.
Auto stacking on the unloading process can be added as an option.
Three Phase DC Inverter, Capacitor Discharge DC and Single Phase AC machines are available for selection.

Full Movie Play

Specification

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Linear Movement Machine

Rotary Table / Index Design Machine

Current passing through flat electrode to join the Predetermined points on the weld part with the parent material.Learn More

Single Phase ACLearn More

Capacitor Discharging DC PowerLearn More

Three Phase DC Inverter (MFDC)Learn More

Nut & Filter Body

Projection Welder - Linear Movement

A specially designed fixture ensures excellent cooling and is aimed for easy change-over.
Machine in Linear Moving motion or Rotary motion is available upon request.
Machine power conversion is available in Three Phase DC Inverter, Capacitor Discharge DC or Single Phase AC.

Specification

Linear Movement

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Rotary Index Design

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