Hwashi Industrial Welding Robots Cover 8 kg to 210 kg Payloads for Automotive and Sheet Metal Plants

One Robot Platform, Six Payload Classes: How HWASHI Approaches Industrial Welding Automation

Most factories buying their first welding robot do not start with the robot — they start with the workpiece. A 0.8 mm galvanized sheet bracket, a 3 mm stainless steel frame, and a 165 kg automotive sub-assembly impose completely different reach, payload, and stiffness requirements. Guangdong Hwashi Technology Inc. builds its industrial welding robot program around that reality: a single 6-axis servo platform, offered in six payload classes, each configured with the welding process the job actually needs.

The range spans 8 kg, 10 kg, 20 kg, 50 kg, and 165 kg payload arms, plus a 210 kg class vertically articulated model for heavy multipoint spot welding. All units share the same controller family, the same programming interface, and the same CE / CCC / ISO certification pathway — which matters more than any single specification when a plant plans to standardise across several production cells.

Model Overview

Every model is supplied as a complete working cell concept rather than a bare arm: welding power source, torch or gun, position fixture, safety guarding layout, and PLC interface with the customer's line controller. Standard machines are 600 × 1300 × 1700 mm in transport configuration, with total weight between 170 kg and 600 kg depending on payload class, and ship in seaworthy wooden cases.

Why Payload Class Is the First Decision, Not the Last

A 165 kg-class spot welding robot is not simply a stronger version of an 8 kg arm. It carries a heavier transformer gun, tolerates higher electrode force at the wrist, and holds position with far less deflection under the closing stroke of a servo gun. That stiffness is what allows consistent nugget diameter on high-strength steel body panels. Conversely, putting a 165 kg robot on a thin gauge cabinet panel is wasted capital: the arm's inertia slows cycle time and the larger envelope complicates safety fencing.

The practical rule HWASHI applies during application review is straightforward: define the heaviest tool the robot will ever carry, add 30–40% margin for gun cabling and fixture handling, then select the smallest payload class that covers it. In most sheet metal and appliance projects the answer falls in the 8–20 kg band; automotive structural parts usually land at 50 kg or 165 kg.

Process Flexibility: Spot, MIG, TIG, and Arc in One Platform

• Resistance spot welding — servo gun integration for body panels, brackets, and frames
• MIG welding — steel, stainless steel, and aluminium structural joints
• TIG and argon arc welding — thin gauge and cosmetic welds, coffee tables, aluminium chairs
• Multipoint sheet welding — programmed weld sequences across a fixed fixture table
• Material handling and stacking — the same arm can be redeployed between welding batches

Because the process package is defined at order stage, a customer running both a spot welding line for automotive brackets and a MIG line for stainless frames can order two configurations on the same base platform and train operators once.

Deployment, Training, and Commercial Terms

Minimum order quantity is one set and supply ability runs at up to 50 sets per month. Delivery is 7–30 working days after payment, with payment terms of L/C or T/T. Commissioning support covers fixture matching against the customer's drawing files, weld program library creation for the first product family, and operator training on the teach pendant. Because the same controller runs across the payload range, a factory that starts with one cell can add a second and third without retraining its team.

Service Commitment

• 12-month warranty on every industrial welding robot
• CE / CCC / ISO certification, with a typical service life of 8–10 years
• 24-hour technical support by email and remote diagnostics
• 100% test run before shipment, with weld samples provided for approval

About HWASHI

Guangdong Hwashi Technology Inc. is a high-tech enterprise founded in 2001, specialising in resistance welding machines and industrial welding robots. With 150–200 employees, roughly 70–80% of output exported, and more than 5,000 customers served, the company supplies welding automation to household appliance, automotive parts, hardware, elevator, and HVAC manufacturers, and develops customized robot cells matched to individual fixture and workpiece requirements.