When a customer asks for a palletizing robot, asking the right questions upfront saves time for both parties and ensures you recommend the perfect model. Here's a step-by-step selection algorithm from the manufacturer.
Step 1: Determine the Required Payload
Payload is the most critical spec. The golden rule:
⚠️ The actual weight of each item should be no more than 80% of the robot's nominal payload. This ensures operational margin and extends service life.
Example: if the customer palletizes 32 kg boxes, the minimum suitable model is WSC-MD40 (40 kg nominal).
| Model | Nominal | Recommended Max Load |
|---|---|---|
| WSC-MD25 | 25 kg | up to 20 kg |
| WSC-MD30 | 30 kg | up to 24 kg |
| WSC-MD40 | 40 kg | up to 32 kg |
| WSC-MD50 | 50 kg | up to 40 kg |
| WSC-MD60 | 60 kg | up to 48 kg |
| WSC-MD80 | 80 kg | up to 64 kg |
Step 2: Verify Speed Requirements
Speed is measured in cycles per minute (one cycle = one placement). Calculate the required throughput:
- Get the conveyor speed or line output (units/hour)
- Convert to cycles/min: output ÷ 60
- Choose a model whose speed rating is at least 20% higher than your calculated requirement
Example: line produces 480 cases/hour → 8 cycles/min → select model rated <9 or <10 cycles/min → WSC-MD25, MD30, or MD40.
Step 3: Check Pallet Height
Pallet height is the maximum stacking height. Confirm with the customer:
- Height of pallet + product at the final position
- Pallet type (Euro 800×1200, industrial 1000×1200)
- Stacking pattern (rows, brick pattern, etc.)
Standard 2100–2200 mm covers most applications. WSC-MD80 at 2300 mm serves high-rack warehouse environments.
Step 4: Assess the Workspace
The WSC collaborative palletizer is installed at the center of the work area. Working radius = distance from base to gripper:
- WSC-MD25/30/40: 1800–1900 mm radius — suitable for one pallet position
- WSC-MD50/60: 2000 mm — can serve 2 pallet positions simultaneously
- WSC-MD80: 2100 mm — maximum layout flexibility
Step 5: Calculate ROI With Your Customer
A simple payback calculation is more persuasive than any catalog:
📊 Payback (months) = Robot cost ÷ (Monthly labor savings + Damage reduction)
Typical inputs: 1 palletizing operator = $800–1,500/month. Two-shift operation = 2 operators. Plus elimination of product damage costs.
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