Kaystar Forklift (with Fork Rotator Attachment) Load Capacity Curve Specification

1. Core Parameters of Load Capacity Curve

• Equipment Configuration: Kaystar 5T rough terrain Forklift (equipped with fork rotator attachment)
• Baseline Working Condition: Maximum lift height ≤3000 mm
• Key Limitation: When equipped with an external attachment (rotator), load capacity must follow this dedicated curve for the actual attachment installed
• Load Center Range: 500 mm – 900 mm
• Rated Load Range: 1800 kg – 4500 kg

2. Load Capacity Comparison Table

(For lift height ≤3000 mm)

Load Center Distance (mm)	Safe Working Load (kg)
500	4500
600	4000
700	3200
800	2200
900	1800

Note: These values are derated for the fork rotator attachment, accounting for the attachment’s weight and its impact on the forklift’s center of gravity to maintain stability.

3. Core Principles

1. Increased Load Center = Reduced Safe Load

As the load center increases from 500 mm to 900 mm, the safe working load drops from 5000 kg to 1800 kg, as an extended center of gravity significantly raises the risk of tip-over.

• Attachment Impact

The fork rotator adds front-end weight and shifts the load center. Always use this dedicated load curve; do not apply standard forklift load values.

• Lift Height Restriction

This curve is only valid for lift heights ≤3000 mm. For higher lifts, further load reduction is required to ensure longitudinal stability.

4. Safety Operation Guidelines

• After installing the fork rotator, use this curve as the sole load reference—never use the load capacity of a forklift without an attachment.
• When rotating the forks, lower the load to 100–200 mm above the ground and ensure no obstacles are nearby to prevent load shifting.
• If the load center exceeds 700 mm, secure the load with additional straps to avoid center-of-gravity offset.