- The risks of high temperature handling are concentrated inPersonnel safety, fixture deformation, aging of pneumatic components and sealsFour aspects.
- The core of thermal insulation isBlock heat transfer paths: Insulated contacts + air gap + necessary cooling.
- The air path and components shouldKeep away from heat sources and install heat insulation protection, and use high temperature resistant pipelines and seals.
- Structurally, this commonly usesOverhead-mounted or mobileKeep the distance between man and machine, and cooperate with protection and emergency stop to reduce operational risks.
In casting, heat treatment and die-casting production lines, workpieces are often still at high temperature after they are released from the mold or furnace. Replacing manual handling with Pneumatic Industrial Manipulator can keep operators away from heat sources and reduce labor intensity. But high temperature will also affectOperators, fixture structures and pneumatic systems, so the plan design must put "heat insulation and protection" in an equally important position as "transportation action".
01Main risks faced by high-temperature handling
- personnel safety: Close contact with high-temperature workpieces may cause burns and heat radiation risks.
- Fixture deformation and failure: Long-term heating may cause deformation of the gripper jaws and contact parts, affecting clamping reliability.
- Damaged pneumatic components: When components such as cylinders and solenoid valves are close to heat sources, their performance will be reduced or even damaged.
- Seal aging: High temperature will accelerate the aging of sealing rings and air lines, causing air leakage and unstable operation.
02Design points of thermal insulation fixtures
The fixture is the part that directly contacts the high-temperature workpiece. The goal of heat insulation design isMinimize heat transfer to the fixture body and pneumatic mechanism。
- Thermal contact parts: Use high-temperature resistant, low thermal conductivity materials at the point of contact with the workpiece as the first thermal barrier.
- Air gaps and insulation: Leave an air gap or add a heat insulation layer between the contact piece and the fixture body to block the heat conduction path.
- necessary cooling: For working conditions with higher temperatures or longer contact time, air-cooling or water-cooling air circuits can be combined to help the fixture continue to dissipate heat.
- Temperature-resistant structure and connections: The gripper jaws and connectors are made of high-temperature-resistant structures to avoid deformation due to heat that affects clamping accuracy and reliability.
03Protection of air circuits and pneumatic components
The pneumatic system is the "power source" of the Pneumatic Industrial Manipulator, and it especially needs protection in high-temperature environments.
- Place away from heat sources: Arrange the cylinder, gas storage, and control components as far away from the workpiece and heat radiation as possible.
- High temperature resistant piping and sealing: The air lines and seals close to the hot zone should be made of materials matching the temperature resistance level.
- Heat shields and protection: Add heat shields or protective plates to components that must be close to the heat source to reduce direct exposure to heat radiation.
- Counterweight end and body protection: Note that the counterweight end, arm body and other structures also need to avoid long-term heating, and add protection if necessary.
04Operation safety and human-machine distance
Reducing people's close contact with high-temperature workpieces is the most direct safety benefit of high-temperature handling.
- Structural selection: Overhead-mounted and mobile configurations increase separation between the operator and the heat source while saving floor space.
- Stable clamping and braking: The transportation of high-temperature workpieces requires higher clamping reliability and brake locking to avoid falling off during transportation.
- Protection and Wear: In conjunction with personal protection such as insulating gloves and protective clothing, set safe distances and warnings.
- Emergency stop and limit: Properly set up emergency stops, limits and moving line planning to reduce the risk of misoperation.
05Treat differently according to temperature and contact conditions
There is no "one size fits all" approach. The higher the temperature and the longer the contact time, the more adequate the insulation and protection must be:
| operating condition | Design focus |
|---|---|
| Low temperature/brief contact | Mainly focus on thermal insulation contacts and basic protection, and just control the heat of the fixture. |
| Higher temperature/longer contact | Insulated contacts + air gap + air or water cooling, components arranged away from heat sources. |
| High temperature / strong thermal radiation | Use multiple insulation layers, heat shields, and heat-resistant materials; prioritize overhead-mounted or mobile configurations to increase separation between operators and the heat source. |
The actual plan needs to be comprehensively judged based on the workpiece temperature, weight, contact method and handling rhythm. By making the three layers of "insulation-protection-safety" solid, the handling of high-temperature workpieces can also be both stable and safe.