1.4.2026 / 4-minute read
External Reciprocating Lift for Cold Storage | 2 tons Automated Pallet Handling System
Overview
Client: A large-scale cold storage and distribution center.
The client mandated a system for reliable 24/7 operation in -25°C conditions, with specific demands:
- High throughput with a 2000kg load capacity.
- Complete automation with conveyor interfaces on both levels.
- Strict temperature integrity during transfers.
- Robust safety features including physical light curtains.
- Specific color scheme (light grey with yellow accents) and component brands (e.g., Dongli motor, Siemens PLC).
Basic Parameters
| Category | Specification |
|---|---|
| Car Specifications | Internal Dimensions: 1900(W) x 1600(D) x 2500(H) mm |
| Rated Load Capacity: 2000 kg | |
| Shaft & Travel | Hoistway Opening: 3200(W) x 2550(D) mm |
| Travel Height: 9800 mm | |
| Number of Stops: 2 Stops / 2 Stations | |
| Performance | Lift Speed: 40 m/min |
| Entry/Exit Direction: Single-side access (3200mm side) | |
| Key Mechanical Components | Lift Motor: 15 KW, DONGLI brand |
| Guiding System: Car Guide Rail T90 / Counterweight Rail TK5A | |
| Safety: Overspeed Governor & Safety Gear, Polyurethane Buffers | |
| Counterweight: 1556 kg | |
| Chain: 16A | |
| Structure & Materials | Main Frame: 120×4 mm Square Tube |
| Car Frame: 160x80x4 mm Rectangular Tube | |
| Top Frame: 200x100x6 mm Rectangular Tube | |
| Integrated Conveyors | Car Conveyor: 1 unit, W1500 x D1600 mm |
| Entry/Exit Conveyors: 2 units, W1500 x D1600 x H520 mm, Speed 15 m/min | |
| Conveyor Roller: 304 Stainless Steel, Ø89mm | |
| Doors & Control | Shaft Doors: PVC Rapid Roll-up Doors (1900x2500mm), 2 sets |
| Control System: Siemens PLC, Manual/Auto modes | |
| HMI: 10-inch Touchscreens (MCGS) at each level | |
| Safety Detection: 200mm height safety light curtains with alarm beacon |
Solution
- Low-Temperature Robustness: Used low-temperature lubricants and suitable structural steel.
- Temperature Lock: Installed high-speed PVC roll-up doors to minimize air exchange.
- Full Automation: Integrated synchronized conveyors for hands-off transfer.
- Comprehensive Safety: Combined light curtains, safety gears, and buffers.
- Custom Compliance: Followed exact color codes and used specified brand components for a seamless fit with client standards.
How It Works
The system operates an automated cycle:
- A pallet is conveyed into the elevator car on the ground floor.
- Rapid doors close. The car lifts to the target floor.
- Doors open, and the car conveyor transfers the pallet out.
- The cycle repeats. PLC-controlled safety systems monitor every step.
Details
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