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Choosing a Manipulator is not only about “moving parts faster”. The right unit should match your cycle time, part geometry, workspace limits, and safety targets, while staying stable for long runs. In packaging and plastics production, a well-matched manipulator can reduce manual handling risk and make output more consistent by standardising pick, place, stacking, and transfer steps. Manual materials handling remains a leading injury driver, with U.S. data showing a large share of missed-work injuries linked to shoulder and back strain from lifting and overexertion.
Start by describing the task in production terms, not equipment terms.
Product and runner handling: What must be removed, where it must be placed, and what orientation must be maintained.
Cycle time: Required picks per minute, plus any dwell time needed for cooling, inspection, counting, or packing.
Payload: Part weight plus gripper weight plus allowance for acceleration and shock. Oversizing is safer than running near the limit.
Reach and stroke: Needed travel distance in X, Y, Z and any rotation requirements.
Environment: Heat, dust, oil mist, humidity, and any washdown needs.
A clear task definition prevents overpaying for unnecessary axes and avoids underspec systems that stall the line.
Payload is not only static load. Fast lines create peak forces during acceleration, deceleration, and sudden stops. Define your fastest motion profile first, then select a manipulator with margin so repeat picks remain stable over months, not just during commissioning.
For most loading and unloading tasks, repeatability is the key metric because the manipulator must return to the same taught position every cycle. Industry discussions commonly cite industrial robot repeatability ranges in the hundredths to tenths of a millimetre, depending on structure and model.
If your process depends on absolute positioning across a larger workspace, plan for calibration, fixtures, and sensors rather than assuming nominal specs alone.
The best arm still fails with the wrong tool. Confirm compatibility with the end effector type your line needs, such as grippers, suction cups, or task-specific tools, and confirm changeover time if you run multiple SKUs. BOHANG manipulators are designed to support varied end effectors and typical industrial handling tasks.
A manipulator is only valuable when it fits your line controls and downstream flow.
Interface and controls: Confirm how it will be programmed and operated, plus how recipes are stored for product changeovers.
Upstream and downstream timing: Ensure the manipulator can handshake with conveyors, moulding machines, counters, and packers to prevent micro-stoppages.
Footprint and guarding: Verify clearance for maintenance, tooling access, and safe operator paths.
Expansion path: Plan now for future add-ons like vision, part presence sensors, or stacking modules.
BOHANG emphasises easy integration and line-specific customisation so the manipulator can fit real operational constraints rather than forcing the line to adapt.
Safety is not a checklist item at the end. It affects layout, speed settings, guarding, interlocks, and risk assessment.
Risk controls: Emergency stop, overload protection, and safety interlocks should be part of the baseline design for industrial manipulators.
Standards awareness: Collaborative and industrial robot safety requirements are addressed through ISO frameworks such as ISO 10218 and ISO TS 15066 for collaborative operation concepts.
A safer cell also tends to be a more reliable cell because it reduces unplanned interventions and inconsistent manual work.
| Selection Item | What To Confirm On Your Line | What A Good Answer Looks Like |
|---|---|---|
| Payload margin | Part plus tooling plus dynamic load | Runs below rated limit at target speed |
| Reach and axes | X Y Z travel plus rotation needs | No mechanical stretching or awkward angles |
| Cycle time stability | Peak rate and sustained rate | Holds takt time without overheating or drift |
| End effector fit | Gripper suction tool options | Supports your tooling and quick change plan |
| Control and recipes | Setup speed for new SKUs | Simple programming and repeatable recipes |
| Integration | Signals with machines and conveyors | Clear handshakes and fault recovery logic |
| Safety | Stops interlocks guarding | Built-in safety functions and risk assessment support |
| Serviceability | Maintenance access spares | Practical maintenance plan and local support |
From a production perspective, the most valuable supplier is the one that can turn your process description into a stable, maintainable automation cell.
Application focus: BOHANG develops manipulators for production tasks such as loading and unloading, removal, stacking, sorting, and material transfer in industrial environments, including moulding-related workflows.
Custom-fit approach: Integration and customisation are positioned as core capabilities so the manipulator fits existing lines and specific operational requirements.
Safety-minded configuration: Standard safety features such as emergency stop and protective functions support safer daily operation when the cell is correctly designed.
Selecting the right manipulator starts with your takt time, payload, reach, and changeover reality, then narrows down to repeatability, tooling compatibility, integration, and safety design. When those factors are aligned, automation becomes a predictable part of the line rather than a fragile add-on.
Share your product weight range, cycle time target, part handling method, and available installation space, and BOHANG can recommend a manipulator configuration and integration plan that fits your production flow and supports stable output.
