Vacuum Tube Lifter Product

Overview

A vacuum tube lifter uses one vacuum source for two jobs: it grips the load through a suction foot and lifts it by partially evacuating a corrugated tube. Open the Lift Control Valve and the Corrugated Lift Tube contracts like a muscle, raising the load; bleed air back in and it extends, lowering it. Because grip and lift come from the same circuit, the device cannot lift a load it has not securely gripped — the defining safety property of the architecture.

Tube lifters handle boxes, sacks, drums, sheets and panels from 10 to 65 kg in the common classes (heavy variants reach about 300 kg), at sustained rates of 6–8 lifts per minute. They exist because loads in this range are exactly the ones regulations and ergonomics push out of manual handling: a person palletising 25 kg sacks all shift accumulates injury risk that a lifter removes while keeping single-handed, near-manual speed.

How it works

A continuously running Vacuum Blower — typically a side-channel machine moving 100–300 m³/h at 200–400 mbar vacuum, driven by a 1.5–4 kW Pump Motor — evacuates the circuit through the Vacuum Supply Hose. The circuit runs from the pump, along the jib, through the Swivel Head, down the lift tube, through the Handle Hub to the suction foot.

The operator's finger lever on the control valve sets how much ambient air enters through the Bleed Port. The tube position settles where the pressure force on its effective cross-section balances the load weight: less bleed means deeper vacuum, more contraction, and the load rises; more bleed and it sinks. This proportional balance is why a tube lifter feels weightless to drive — the operator steers height with fingertip effort while the vacuum does the work, at speeds up to about 1 m/s. The spiral-reinforced bellows contracts to roughly a third of its free length, giving a working stroke of 1–1.8 m.

To release, the operator sets the load down and pulls the guarded Release Trigger, which vents the foot. The trigger needs two distinct actions, so a finger slip in mid-air cannot dump the load.

Suction feet

The Suction Foot Set are the application-specific element, swapped on a tool-free Foot Quick Coupling. A flat Box Suction Foot suits sealed cartons. Porous loads — paper sacks, woven bags — leak continuously, which is precisely why tube lifters use high-flow blowers rather than high-vacuum pumps: the Sack Suction Foot holds grip as long as the blower outruns the leakage, and the Inlet Dust Filter catches the dust pulled through. A twin-cup Sheet Foot Beam beam handles plywood, glass and sheet metal. Replaceable Sealing Lip rings are the main wear item, conforming the cup edge to each surface.

Suspension

The lifter hangs from a Tube Trolley running along a Jib Arm of 3–5 m reach on a floor-anchored Jib Pillar. The Slew Bearing lets the arm swing through 270–360 degrees with under 50 N of hand force, so the working area is an annulus several metres across. The swivel head provides endless rotation of the whole tube, and a Rotation Grip lets the operator spin the load itself — useful when orienting cartons on a pallet. Overhead rail and bridge suspensions replace the jib where rectangular coverage is needed.

Safety

EN 14238 governs these devices, and the failure case it targets is loss of vacuum under a suspended load. A Vacuum Check Valve at the pump traps circuit vacuum if power fails; the load does not drop but descends gently as the Sink Restrictor admits air at a calibrated rate, giving the operator seconds to land it. A Low-Vacuum Switch sounds the Warning Buzzer the moment grip vacuum falls below threshold — from a torn sealing lip, a too-porous load or a blocked filter — and the Vacuum Gauge at the handle lets the operator confirm safe vacuum before every lift.

Compared with hook-and-sling handling, the vacuum lifter's grip is also its limitation: it holds only what its foot can seal against, and surface condition (dust, frost, heavy texture) directly determines capacity. Within that envelope it is the fastest one-person lifting aid in the 10–65 kg class, which is why it is standard equipment at palletising stations, machine-tending cells and sheet-processing shops.