Technical Solution
In the grain processing and modern logistics system, vacuum tube lifting machines have become a core tool for solving the “last mile” problem of high-frequency manual palletizing for standard rice bags weighing 25kg to 50kg. Unlike traditional overhead cranes or forklifts, it transforms heavy grain bags into “suspended objects at your fingertips” through the shrinking characteristics of the vacuum-powered lifting tube.
Vacuum Power Unit: Variable frequency vacuum pump (with 76% energy saving technology), equipped with a high-efficiency silencer.
Lift Tube: Food-grade high-strength synthetic fiber reinforced hose with excellent tensile memory.
Control Handle: Single-hand control with integrated real-time weight display and release button.
Effective End Effector (EOAT): Adaptive sponge matrix suction cup designed for woven bags.
Support System: Lightweight aluminum alloy rotary boom or flexible track system.
Working Principle
Differential pressure drive logic
The system does not rely on mechanical winches; instead, it utilizes changes in volume within the vacuum tube to achieve lifting and lowering.
Vacuum Technology:
Flexible Sponge Sealing Ring: Embedded within the woven texture, it compensates for air leakage caused by uneven surfaces.
High-Flow Venturi/Turbine: Even with minor leaks, the system maintains a sufficient pressure differential to ensure a secure grip.
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| Rated load (Payload) | 35kg∼65kg |
| Lift speed (Lift Speed) | Maximum 1.0 m/s |
| Effective working radius | 3,000mm∼4,500mm |
| Material requirements | Meets food hygiene certification |
| Protection class | IP65 (dustproof) |
Key Technical Highlights
1. Smart Load Sensing:
The vacuum lifter is equipped with an automatic dynamic balancing algorithm. When the suction cup contacts the rice bag, the system automatically identifies the bag’s weight and instantly adjusts the vacuum pressure, eliminating the need for repeated manual knob adjustments and achieving seamless, “what you see is what you get” handling.
2. Fail-Safe Safety System:
It features a built-in normally closed safety check valve. In the event of a sudden power outage in the factory, the vacuum pump stops operating. The gas storage device ensures the rice bag remains firmly attached to the suction cup and achieves a smooth landing within 15-30 seconds through damping release, preventing the bag from falling directly and causing bursting or injury.
Application Value
Simple Training: Operators can master “one-handed palletizing” in just 5 minutes, without needing a special equipment operation certificate.
Ergonomic Improvement: Completely eliminates lumbar muscle strain caused by handling rice. According to 2026 health guidelines, this type of equipment can reduce the muscle load on operators by more than 90%.
Zero Breakage Rate: Compared to traditional mechanical grippers, vacuum adsorption applies uniform pressure to the surface of the rice bag, eliminating bag breakage and grain loss caused by hooking or squeezing.
