---
title: TwenTower® classic — storemaster® storage technology
url: https://storemaster.de/en/shop/blechlager/twentower/
date: 14 September 2021
---

# TwenTower® classic

TwenTower® classic: 30 years of success

Drawer racking system for sheet metal with up to 26 drawers, designed for wood-free storage of complete sheet metal stacks, rather than sheet by sheet
storemaster® innovation from 1996 with a 20-year guarantee (Compliant with DIN EN ISO 9001)

storemaster® Unique Selling Points:
➠ Highest storage density on the market thanks to storemaster® sheet metal stack storage without timber – an innovation from 1996
➠ automatically operating safety devices in accordance with UVV
➠ no manual locking devices that contravene UVV regulations
➠ patented drawer fall protection
➠ Swivelling pull-out rail walls that operate under load without contacting the floor, thus protecting sealed floors and surface coatings
➠ Suitable for installation on uneven floor surfaces and in any floor conditions
➠ Installation without a foundation thanks to foot beam load distributors
➠ Functional accessories including: storeboy rolling step and HandlingHooks for ergonomic operation at any height, as well as composite anchors for the necessary, tension-resistant fixing of the unit to the hall floor

➠ storemaster® PowerTower systems are TwenTower®classic drawer systems with electrically motorised slides for drawer loads of 3 t to 20 t at minimal additional cost. The electrified drawer system with PowerTower function has technical connection ratings of 400 V / 16 A. The travel speed is v = 8–10 m/min. In the event of a power cut, the system can be switched to manual operation immediately (resilience). The system, featuring a deadman’s control and direction selection, is maintenance-free when operated correctly in accordance with DGUV Rule 108-007 for warehouse equipment and machinery. CE marking (Declaration of Conformity), documentation, circuit diagram and spare parts list are included in the scope of supply. When using a remote control, protective and safety measures such as safety guards, access authorisation, measures to shield against interference frequencies, controlled material loading and removal procedures tailored to the system’s safety characteristics, and their control-system integration with the functions of the drawer system must be provided by the customer. Ensuring occupational safety in accordance with internationally recognised standards: the world’s only heavy-duty drawer racking system for sheet metal packs with an automatic drawer safety anti-fall function in accordance with UVV.

Delivery: free of charge within Germany

## Product Details

| Property | Value |
|----------|-------|
| Price | €11,644.00 |
| Availability | In Stock |
| SKU | twentower |
| Categories | Sheet metal storage, drawer racking |

TwenTower® The world’s best-selling sheet metal storage system.
TwenTower® – The original storemaster® from 1996 – an investment for generations – featuring self-supporting pull-out rail walls (storemaster® innovation from 2024). Sheet metal storage drawer system with swivelling pull-out roller side panels, optionally lockable; high-load-bearing, permanently lubricated block hinges permanently secure the swivelling panels in their height position, a permanently step-free rail transition between block and swivel rails, as they are welded – not bolted – and feature a storemaster® mitre joint! Occupational safety in accordance with internationally recognised standards; system supplied ready for operation as a pre-assembled unit – optionally drawers electrified. Frame structure in a torsion-resistant L-shaped upright frame design for permanent vertical alignment => 20-year functional guarantee; automatic locking mechanisms secure the drawers in their resting and working positions without manual operation of mechanical locks on drawers with a payload ≤ 2,000 kg; the ServoPatent extension spring facilitates the extension of heavy-duty drawers with a payload ≥ 2,500 kg. Extension rail walls that do not touch the floor, suitable for any floor surface. The storemaster® – functional safety for swivelling pull-out roller side panels: The roller flange guides on the running surfaces of the rails automatically lock the drawers in place in the event of additional lateral forces, reliably preventing them from falling out without the need for additional measures that do not comply with health and safety regulations (storemaster® innovation from 2015). Powerful magnets automatically secure the extended pull-out roller runners in their 90° position, without the need for mechanical or manual locking mechanisms that do not comply with health and safety regulations. The storemaster® – smooth running: Each pull-out is mounted on 8 special low-friction ball bearings on chromated solid-steel flanged wheels (no lightweight sheet-metal-cased rollers or ball bearings repurposedas wheels) with double axle bearings, running safely and without jamming on hot-dip galvanised (10 times more abrasion-resistant than painted surfaces), smooth running rails without dirt pockets, as there are no raised or recessed edges. Perfect fall protection with automatic function in accordance with UVV for the swivelling version. Special heavy-duty precision block hinges with permanent lubrication ensure, in the case of swivelling pull-out roller side panels, a permanently step-free transition from the rail into the pull-out area – durable and maintenance-free. Occupational safety and accident prevention (health and safety) in accordance with international standards: storemaster® meets the following UVV occupational safety requirements, which cannot be rectified by subsequent modifications and without which commissioning the product would permanently jeopardise BG insurance cover: Elimination of human error through the elimination of the need to operate safety devices.
TwenTower® Unique Selling Points
 

Convenient batch storage rather than sheet by sheet using the patented PalEx depalletiser, thanks to the storemaster® drawer-depth-web frame construction (invented in 1995) with slip-proof sheet metal package embedding.
TwenTower® heavy-duty drawer systems are suitable for all storage and stowage variants => optional switching between storage without wooden pallets and storage including wooden pallets, and vice versa.
Safety devices are automatically activated during operation of the system in accordance with accident prevention regulations and are therefore not subject to arbitrary manual operation, i.e. operation that could be overlooked.
Automatic locking of the swivelled-out roller rail panels at a precise 90° (adjustable) via strong magnetic adhesion – this release automatically when swivelling back in, without the need for locking pins etc.
The storemaster® pull-out technology allows installation and operation on any type of floor surface, as well as on warped and/or uneven surfaces with a gradient, without the need for a foundation slab. The swing-out pull-out rail panels (doors) do not come into contact with the floor; heated floors and those with sensitive coatings remain undamaged.
100%-type UVV drawer fall protection via a patented automatic flange-groove forced-guidance system (DBGM) without the need for arbitrary (and potentially overlooked) mechanical operation by the operator.
Automatic, self-releasing locking mechanisms secure the resting and working positions against unintentional movement of the drawers without the need for manual operation of mechanical locks.
Runners without dirt pockets, made from dimensionally stable solid steel (no folded sheet metal), abrasion-resistant and hot-dip galvanised, running surfaces ground, welded to the frame (not bolted) to ensure a permanently step-free transition between the block and swivel rail sections via a mitred joint.
The patented shaped-steel upright framework in a torsion-resistant L-shaped upright frame construction (DBGM) – not a portal! – with welded base beam load distributors (storemaster® trademark) alone ensures the long-term verticality of the support structure columns, guaranteeing the unlimited, unrestricted functionality of the system without diagonal cross-bracing, which is what enables the structural stability verification for both single-sided and double-sided designs without cross-bracing.
High-load-bearing, permanently lubricated heavy-duty block hinges for permanent fixation of the swing-out walls at their height position.
Precision twin-axle wheel suspension for smooth, tilt-free running performance at all times.
Particularly low pull-out force even with heavy drawer loads, without the need for aids (crank, etc.).
Patented Servo pull-out spring facilitates the extension of the heavy-duty drawers.
Drawers can be very easily removed individually from the system to adjust the usable height.
Heavy-duty, all-steel flanged rollers, chromated, with double ball bearings.
Storage density of up to 25 drawers at an extension height of approx. 2 m.
Combinable sheet metal and bar material storage units with plug-in compartment dividers.
Drawer extension > 100 %.
UVV-compliant push-through safety device for double-sided sheet metal removal.
OverheadTop add-on block can be retrofitted without the need for subsequent adjustments.
OverheadTop add-on block with cantilevered storage levels for easier insertion of forklift forks, height-adjustable in 75 mm increments, operable from both sides – optional for cassette storage.
Electrification up to 10 t / pull-out storage level – max. 13 drawers (storemaster® patent).
System with swivelling roller-track pull-out walls, pre-assembled and ready for operation.
Operational and functional safety in accordance with the guidelines of the RAL-RG 614 Quality Association.
20-year functional guarantee.
TwenTower® extension to the MasterTower® using a statically structurally secured professional steel construction with integrated crane column without auxiliary support – crane approval by an expert in accordance with DGUV Rule 108-007 and DIN EN 15635 – crane connection can be offset on either side.