Efficient "sprinter" for hard multi-shift applications


Stöcklin Logistik AG (Dornach, Switzerland) has delivered on 3rd December 2013, via its Karlsruhe dealer, Albert Wasmer GmbH, 15 two-level, electrical rider pallet trucks to the logistics center of Hellmann Kunze. With their ergonomically designed operator position, a clearly arranged control panel, the simple and safe handling, their speed and versatility and their performance and sturdy design, these stackers are ideal for those hard and multi-shift cross-docking and handling operations.

These "Sprinters" - which is what these Stöcklin units are called internally - are partly used to load and unload trucks but mainly for transferring pallets from the unloading area to the respective loading place for further transport. Mainly for transporting pallets from the unloading zone to the respective loading yard for onward shipment. Currently there are on average around 2,200 dispatches handled with 5,000 to 6,000 parcels per day.

Compact, versatile and strong "Sprinters"

Although Hellman had already been using Stöcklin stackers for five years, a comprehensive new five-year full-service contract was negotiated, even before Stöcklin Logistik AG and Albert Wasmer Gmbh had received the new proposals.

Just like all equipment from the competition, Stöcklin lift trucks are also subjected to the usual, stringent in-plant testing at Hellmann. In addition to performance and ergonomics, the economic efficiency as well as the energy balance and durability of these machines are tested thoroughly.

At Hellmann Kunze use of stackers is required because of the relatively high difference in the heights between the transfer station and docking facilities for trucks. Each degree of inclination also means several percent more performance required from the equipment. The floor handling equipment from Stöcklin has proven itself well in practical tests on the loading ramps, some grades of up to 10%.

Stability and optimal traction even in the most difficult application conditions

The users have been convinced as well by the further equipment and performance-related features: The 800 mm wide units of this type, which are only 2,013 mm in length, have in comparative terms the shortest turning radius of only 1,823 mm and are correspondingly agile with 11 km/h speed and load.

The lateral drive and level compensation offer high stability and optimum traction for handling material. The maintenance-free, three-phase AC motors offer high torque at low speed and proven, smooth operation. The AC travel and steering motor as well as the variable-speed DC hoisting motor are energy saving. Regenerative electronic brakes recover electric power. The so-called LOS system (Limited Operating Strategy) allows limited operation even when defects are present. The driving characteristics and other parameters can be set easily on the manual programming console to meet specific user requirements.

Ergonomic and robust multi-functional handle

The eye-catching and simultaneously important details, from the viewpoint of work and operational safety as well as ergonomics and handling efficiency, include the multi-function handle, developed by Stöcklin itself and also used on the Stöcklin front seat stackers. This feature allows control of forwards and backwards motion with slight lever movements in the corresponding direction.

Forwards and backwards motions can be initiated with simple thumb movements in the corresponding direction on the handle for operation of the stacker, which also functions as an entry aid thanks to the metal plate attached to the rear of the chassis as a safeguard. This handle combines a variety of attributes such as sturdiness, maximum functionality in minimum space and sensitive control features.

Buttons are located on the side of the lever for actuating the initial lift as well as the raising and lowering functions with your thumb.  Further features include the two-stage, steering-angle-dependent speed reduction and speed-dependent steering wheel sensitivity.

Comprehensive full service contract and client-oriented customizing

Albert Wasmer GmbH has been a dealer in the floor material equipment sector for many years as the representative of several well-known brands and of important accessories such as batteries and chargers as well as being a partner for sales, rental and leasing and all types of services, maintenance and equipment related to stackers. "Accordingly we have introduced and implemented within the new full service contract a series of improvements as part of the negotiation of the order" said Albert Wasmer, Business Manager at Albert Wasmer GmbH.

This includes the new initial lift cylinder and the new emergency stop circuit, which stops the machine as soon as the driver lifts his foot from the small, circular platform; the new steering and drive control, which ensures 24 hours use in every respect, as well as the new battery and charger technology with optimized battery chamber designed as a completely enclosed unit, allowing the battery to be replaced quickly from the side without danger of damage.

Energy and cost-saving stacker batteries with HF charger

The new batteries with electrolyte circulation offer maintenance intervals of up to 13 weeks. In combination with the high frequency chargers with their comparatively low CO2 emissions, they offer savings of up to EUR 1,300 per stacker per year, depending on the annual operating time and were one of the primary reasons Hellman Worldwide Logistics, with their dedicated environmental and sustainability policies, selected the Stöcklin stacker 

The electrolyte circulation ensures optimum performance and maximizes the battery service life, while also allowing short term intermediate charging; during breaks, for example. This makes it possible to postpone battery changes to the end of the shift. This is a great advantage for Hellman with their multiple shift operation. The battery status light on the surface of the battery provides visual support for quick checks: Green means “Everything OK”, orange means “Refill” or “Service required”.

Increased working and operating safety

A further important criterion is the shock system, which contributes to increasing the working and operating safety, among other factors, as well as taking over fleet management functions. Damages, such as those resulting form collisions, are registered directly by the shock system and transferred to the plant manager’s computer. This saves time and effort for documentation. The amount of violent damage is reduced considerably; an important factor, particularly for long-term full service contracts.

The shock system, which acts as a fleet management system, consists of two modules: The console, which serves, among other things, for driver login, and the shock sensor installed in a stable frame, which can also transfer any collisions directly.

The shock system thus combines the functions of a fleet management system with the features of driver and machine profiles as well as energy management. Moreover it minimizes violent damage, because the person responsible for the damage is identified immediately and those responsible can take immediate action.