Industrial robots in automated factories operate in extreme conditions — welding sparks, paint overspray, radiant heat from hot presses, molten metal debris from casting. Exposed to those conditions without protection, robot joints, cables and sensors are damaged and the line stops. The custom protective cover fitted over all or part of the robot to prevent that is the robot insulation jacket.
Why robot jackets are needed
- Blocks sparks and weld spatter — preventing damage to robot joints and cable sheathing
- Blocks radiant heat — limiting body temperature rise when working beside hot equipment
- Blocks paint and chemical overspray — preventing contamination on painting robots and cutting cleaning cost
- Blocks dust and debris — protecting against chips and fragments in casting and metalworking
- Extends robot life — slowing wear of precision components caused by environmental contamination
- Reduces downtime risk — preventive protection minimising unplanned stoppages
Robot environments and hazards by process
| Arc and MIG welding robots | Sparks, welding fume, radiant heat — risk of melted cable sheathing |
| Spot welding robots | Heat transfer from the gun, electrode spatter — joint contamination and overheating |
| Painting and sealing robots | Paint and solvent overspray and mist — penetrating joint gaps and contaminating lubrication |
| Die casting and foundry robots | Molten metal fragments, radiant heat above 800°C — high-temperature materials essential |
| Hot press robots | 200–400°C radiant heat — body overheating under prolonged exposure |
| Food and pharmaceutical robots | Contact with wash water and cleaning agents — waterproof, antimicrobial materials needed |
Choosing materials
Welding robots (sparks and radiant heat)
- Outer skin: silica cloth or Kevlar cloth — will not burn or tear from sparks
- Inner fill: Cerakwool blanket (300–800°C) — absorbing radiant heat
- Inner liner: heat-resistant aluminum coating or silicone coated cloth
- Closure: Velcro or zip — stays in place through the robot's full range of motion
Painting and sealing robots (paint and solvent overspray)
- Outer skin: Teflon (PTFE) coated cloth — paint does not adhere and it cleans easily
- Inner fill: glasswool or mineral wool blanket (for insulation)
- Surface: smooth closed-cell structure — preventing paint penetration
- Colour: white shades — making paint contamination easy to see
Die casting and foundry robots (heat and metal debris)
- Outer skin: silica cloth or ceramic fiber skin — withstanding contact with metal debris above 800°C
- Inner fill: Cerakwool 1100°C blanket — blocking radiant heat completely
- Closure: heat-resistant wire and clamps — Velcro can degrade at these temperatures
- Replacement: quarterly inspection recommended — the outer skin can be damaged by metal debris impact
Food and pharmaceutical robots (hygiene and waterproofing)
- Outer skin: Teflon (PTFE) coated cloth or stainless steel — blocking wash water completely
- Inner fill: Basofoam or PIR urethane — antimicrobial and non-contaminating
- Complete joint sealing — preventing ingress of cleaning agents and moisture
- FDA and GMP compliant materials — suitable where food contact is possible
How they are made
| 1. Site survey and information | Robot model, area to be covered (whole robot, joints, cables), service temperature, main hazards |
| 2. Design and pattern making | A 3D pattern designed to the robot's form, allowing for joint travel (±180° and so on) |
| 3. Material selection and cutting | Choosing and cutting the outer skin, fill and liner combination for the process environment |
| 4. Sewing and closures | Sewn with heat-resistant thread, with Velcro, zip or clamp closures fabricated |
| 5. Trial fitting and feedback | Motion testing to confirm no interference or slippage before final delivery |
Points to watch
- Always confirm joint travel in advance — cover interference can cause robot malfunction
- Never cover areas that need cooling (servo motor vents) — blocking them causes overheating
- Check for interference with cable trays and routing at the design stage
- Inspect every three to six months for damaged skin and loose closures
- Never leave a damaged cover in service — exposed inner fill becomes a contamination source
✅Tell us the robot model, the process (welding, painting, casting and so on), the main hazards (sparks, heat, paint) and the areas to be covered, and we will quote a custom jacket. Photos or drawings speed fabrication up considerably. Technical advice: +82 10-4266-9745
Need a product quote or technical advice?
Our specialists will respond with a quotation quickly
Related Technical Guides
Product Guide
What Is a Removable Insulation Jacket (4R Cover)? Five Things to Know Before Ordering
Product Guide
What Is High-Temperature Canvas? Types, Materials and Applications
Technical Guide
Silica Materials — Fabrics, Felts and Ropes for Service Above 1000°C
Technical Guide
HVAC Duct Insulation and Acoustics — Internal Lining vs External Wrap