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A scissor lift for racking repair is the right tool for one beam and the wrong one for a whole bay. On the beam, a 450 kg platform is enough, but not by the margin the number suggests. Two fitters, their tools and one replacement beam use about 240 to 280 kg of it, and that is before the beam overhangs the platform end, which effectively doubles its contribution. Run the numbers before the machine is booked, because the failure mode here is not a collapse. It is a platform that tilts enough to make the work unsafe while still lifting normally.
Pallet racking maintenance loads the platform in three ways, and only the first one is obvious.
| Item | Weight | How it is counted |
|---|---|---|
| Two fitters with PPE and tool belts | 160-180 kg | Direct; this is what the rating is mostly for |
| Hand tools, socket set, torque wrench, clips | 15-25 kg | Direct |
| Replacement beam, 2,700 mm | 35-60 kg | Direct, plus an overhang penalty if it projects |
| Beam projecting 600 mm past the deck end | Effectively 2x | Moment arm, not mass |
That last row is where the arithmetic changes. A 60 kg beam lying flat on the deck is 60 kg. The same beam with 600 mm hanging past the end of a 2,270 mm deck is applying a turning moment to the platform that the rating does not really account for, and in practical terms you should count it as 120 kg.
So the real total is 180 plus 25 plus 120, which is 325 kg of a 450 kg rating. It fits. It fitted on the 320 kg machine too, on paper, which is why people book the smaller one and then find the platform tilting when a fitter walks to the far end.
The beam is the load nobody counts. Sixty kilos on the deck is one thing; sixty kilos overhanging the deck end is something else.
The scissor lift platform load rating assumes the load is reasonably distributed. Two fitters standing at one end with a beam overhanging the same end is the worst case, and it produces a deflection that is entirely within the machine's design but feels alarming to someone standing on it. The platform does not level itself; the machine's tilt protection monitors the chassis, not the deck.
Three practical fixes, in order of how often we recommend them:
Put the beam on the deck centreline and tie it. Even 300 mm of overhang, taken off the moment arm, roughly halves the penalty. Two ratchet straps to the deck tie-downs cost nothing.
Send one fitter up, not two. Beam replacement is a two-person job on the ground and usually a one-person job at height, with the second person handling the beam from below on a rope. That single change takes 80 kg out of the calculation.
Use the 450 kg scissor lift and keep the deck retracted. The extension deck is rated 113 kg on its own, and it is not where a beam goes. Rolling it out to reach further puts the beam further from the machine's centre, which is the wrong direction.
For a single beam or a damaged upright, a scissor lift for racking repair is the right tool for beam replacement access: stable, quick to reposition, and the platform puts the work at waist height. For replacing a whole bay, or for a rack run longer than about 12 m, it is not. The repositioning time dominates, the machine cannot reach past the rack face, and the work needs a mobile elevating work platform with outreach or a purpose-built rack installation truck.
If the repair is above 8 m, the 7.8 m platform on the GTJZ-0810 reaches 9.8 m of working height and carries the 450 kg. If the aisle is narrow, the GTJZ-0810-Z gets in at 840 mm with a 320 kg rating, which is enough for one fitter and a beam but not for two fitters and a beam. That is the trade, and it is worth stating plainly rather than letting the customer discover it at height.
We keep a beam-overhang note on the 450 kg model's data sheet, because the rating is quoted flat and the moment arm is not. It says, in effect: capacity assumes a distributed load within the deck footprint; loads projecting beyond the deck end should be tied down and counted at not less than twice their weight. No customer has ever complained about that note, and several have come back to say it stopped them buying the wrong machine.
If you are planning racking repairs, send the beam weights and the aisle width through the contact form and we will tell you which of the two 8 m machines fits the job. Both are on the range page.
Tell us the constraint you are stuck on — floor loading, doorway width, cold store, aisle width, charge window. We will tell you which model works, what it costs, and what we would refuse to sell you.
GTJZ-0810 26ft (7.8 m) Self-Propelled Scissor Lift — 450 kg
GTJZ-0810-Z Narrow 840 mm Scissor Lift — 26ft (7.8 m), 320 kg