Rent aerial work platforms and construction machinery in Liberec

Renting aerial work platforms and construction machinery in Liberec almost always means reckoning with gradients. The city lies in a valley basin between Jested and the Jizera Mountains; the urban area rises steeply from the Neisse on both sides. Residential quarters, commercial sites and works access roads lie on slopes, streets are narrow in places, and set-up areas are rarely level. Added to this is an industrial structure of automotive suppliers as well as plastics and glass processing with high halls and hot plant areas. Both determine which machine can work sensibly here.

Every mobile elevating work platform has a limit incline specified by the manufacturer up to which it may be extended. If this is exceeded, the tilt monitoring system blocks the lifting movement — not a fault, but the safety function that prevents the centre of gravity from shifting out. In Liberec this is the most common reason why an otherwise suitable machine fails at the work point. Anyone working on a slope has three options:

• Level the area. Platforms with outriggers compensate for a residual gradient via the stabiliser pads. What counts is the permissible residual incline stated in the operating manual.

• Change the machine class. Spider lifts with 13.00 to 39.50 m are built for this situation: tracked undercarriage, low ground pressure, narrow transport width.

• Work from below and across the terrain. Articulating boom lifts with 10.89 to 48.15 m reach the work point without standing underneath it — the articulated arm bridges an embankment or retaining wall.

Clarify three details about the set-up area in advance: gradient in percent or degrees, ground surface and the width available for the outriggers. Without them, the selection remains guesswork.

The second part of the site question is the route to the job. Many streets in the hillside districts are narrow, have turning restrictions and will not readily let a long low-loader through. So state the carriageway width at the narrowest point, the gradient, the turning options and the handover point early on.

Winter operation is no marginal issue in the foothills of the Jizera Mountains: snow and ice change the set-up area, frozen ground bears differently from thawed ground, and access roads are restricted at times. For indoor work nothing changes — there, electric scissor lifts with 6.30 to 33.00 m are the standard class all year round.

The region's manufacturing industry poses a quite different task. In plastics and glass processing, maintenance is carried out on melting, moulding and extrusion plant — at great hall height, close to hot plant components and under time pressure, because the line is at a standstill. The work point is high up, the hall floor is occupied by peripheral equipment and material containers, and a direct approach route underneath rarely exists.

In these halls the articulating boom lift is therefore encountered more often than the scissor lift — it positions itself beside the plant and guides the platform over it. If the floor is clear and level, the scissor lift remains the more economical choice because of its larger platform area; in the storage areas of the supplier companies, high-rack scissor lifts with 18.50 to 33.00 m and a narrow track are at work.

Two points belong in every enquiry from this environment: the permissible floor loading and the passage height in the retracted state. If elevated temperatures or flying sparks occur at the work point, that belongs in the enquiry too — the operating limits are set by the plant operator.

The greatest working height is reached by telescopic boom lifts with 56.90 m — they need a paved, load-bearing and sufficiently level set-up area, which on hillsides is the limiting factor. Inside buildings, vertical mast lifts with 10.00 to 12.65 m are the lightest class; on unpaved ground outdoors it is diesel scissor lifts with 9.70 to 34.00 m.

On sloping sites and works premises, the telescopic handler is the usual carrier machine for material: rigid machines with 4.30 to 18.80 m at 1.25 to 25 t lifting capacity, rotating models with 15.42 to 38.90 m that work all round from a single set-up — on a narrow works yard or hillside terrace the decisive difference. For indoor use there are electric models with 5.85 to 30.00 m.

Excavators from 1.8 to 30 t operating weight cover slope stabilisation, service trenches, foundations and interior demolition; on confined plots the 1.8 t machine is often the only one that reaches the work site. In addition, forklifts from 3 to 16 t and rough-terrain forklifts for unpaved areas.

All machines are handed over tested — with a valid test certificate, CE documentation and operating manual; inspection intervals and maintenance history are documented.

The law of the country of deployment applies to the operator's duties at the work site. For the Czech Republic this means: Government Regulation NV 378/2001 Coll. with its annex on the lifting of loads and persons, CSN EN 280 as the test standard for mobile elevating work platforms, plus the Labour Code (262/2006 Coll.) and Act 309/2006 Coll.

On hillside deployments in particular, the division of roles matters: we supply a tested machine together with its documentation. Whether the set-up location is load-bearing and sufficiently level is for you as the operator to assess — as are operator instruction and the check at the start of each shift.

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Working height, outreach and ground conditions determine the right machine. A comparison of all designs with costs and inspection duties is available at Rent a lifting platform: platform types, costs and applications.