Dumbwaiter – ISO A

Description

Dumb waiters are suitable where goods need loading and unloading at serving height. ISO-A is a dumb waiter lift that can have a stainless steel finish. This makes it easy to clean, hygienic and ideal for food preparation areas. ISO-A’s size is customisable, meaning it will fit almost anywhere.

The ISO-A Dumb Waiter can lift up to 300kg and is popular with pubs, restaurants and hotels for transporting food and drink between levels. In these scenarios, dumb waiters significantly speed up service, improving customer satisfaction.

Offices, shops and industrial facilities use dumb waiters like ISO-A to move lighter loads, such as files, stock and machine components. This reduces manual handling and the associated risk of workers sustaining strain injuries, known as musculoskeletal disorders.

Specification

Structural & MechanicalFrame

Self-supporting steel structure with cold-rolled, galvanised profiles
Pre-assembled segments for simplified installation
Shaft guides: T-profile rails (e.g. T45×5 mm)
No separate building shaft required (self-supporting frame)

Car (Lift Cage)

Load capacity options typically 50 kg, 100 kg or 300 kg (customer choice)
Car width: ~500–1000 mm (in 25 mm grid)
Car depth: ~500–1000 mm (in 25 mm grid)
Car height: ~600–1200 mm (adjustable)
Removable shelf(s) (often galvanised steel; options available)
Adjustable guide shoes and emergency guidance on both sides
Balancing devices on suspension elements

Doors

Vertical bi-parting doors at serving height (typically ≥ 700 mm above finished floor)
Door leaf widths ~500–1000 mm; heights ~600–1200 mm
Manual operation with aluminium handles
Door and frame materials: galvanised steel (stainless steel option often available)
Type-tested safety locks (usually TÜV certified)
Compliant with relevant door standards (e.g. DIN 18092

Drive Unit

Electric drive with worm gear, factory oil filling
Standard motor protection class IP54 (three-phase, 400 V/50 Hz IEC)
Brake with disc type; manual handwheel for service
Rope or chain suspension depending on load (e.g. ropes for <100 kg, chains for higher)
Counterweight or balancing weight as galvanised frame construction with infill

Control System

Microprocessor controller
Pre-wired control cabinet with plug-in connections
Call/send push buttons on each landing
Safety circuit low-voltage (e.g. 48 V)
Adjustable dispatch delay and error indicators
Landing indicators such as arrival buzzer, position and directional indicators

Safety Devices

Interlocked landing doors (won’t move if doors open)
Emergency stop and slack-rope/chain detection where fitted
Motor overload protection and thermal cut-out
Safety gear available (optional)

Performance Parameters

The precise values depend on the configuration, but typical ranges include:

Capacity: 50 kg, 100 kg or 300 kg (higher options possible by special
Travel height: Defined per project; modular frame allows multi-stop
Number of stops: Up to 3 (or more by special design)
Speed: Normally in the service lift range (e.g. ~0.25–0.45 m/s); consult supplier for exact value
Serving height: Minimum ~700 mm (waist-height+

Optional Features

Stainless steel finishes to car and doors (important for hygiene in food service)
Heated shelves to keep items warm during transport
Intercom between floors
Position indicator lights and additional signalling equipment
Custom door configurations (single/through/adjacent entrances)
Enhanced safety gear and governor systems

Key Features

Here are the key features of the SKG ISO‑A dumbwaiter — a waist‑height service lift designed primarily for transporting goods between floors (popular in hospitality, retail, offices and light industrial settings):

Load & performance

Capacity options: typically available in 50 kg, 100 kg and up to 300 kg versions, depending on specification
Serving height: designed to load/unload at waist or counter height, making it especially suited for food and service environments.

Construction & durability

Robust structure: customisable self‑supporting steel shaft and car; finishes often include stainless steel (ideal for hygiene) or galvanised steel.
Customisable size: car and shaft dimensions can be tailored to fit tight spaces or specific operational needs.

Access and doors

Door options: bi‑parting or roller shutter doors at landings; various entry configurations (single, through or adjacent) available.
Approved locking: safety‑tested door locks ensure the dumbwaiter cannot operate with doors open.

Controls & indicators

Call & send controls at each served floor for simple operation.
Position indicators and arrival buzzers provide clear feedback on lift location and service completion.

Optional enhancements

Heated shelves: keep food warm in transit — useful for kitchens and catering.
Intercom system: enables communication between floors during use.
External cladding options: can be finished to suit décor or hygiene requirements.

Installation & use

No pit required for counter‑height models, reducing installation complexity and time.
Can be installed quickly with minimal building works, ideal for refurbishments and busy environments.

Typical applications

Hospitality: pubs, restaurants, hotels (food, drinks, service trays
Offices & retail: transporting files, stock or components.

Key Benefits

Versatile Load Mover

Capable of lifting up to 50kg, 100kg and 300kg depending on the specification. The ISO-A is popular with pubs, restaurants, and hotels for transporting food and drink.

Tailored To Your Business

Tailor the lift to suit your business with a choice of door styles, entry configurations and external cladding.

Enhanced safety features

Safety is a priority with this model. Equipped with interlocked doors, overload protection, and smooth, controlled movement, the dumbwaiter minimises the risk of accidents while ensuring reliable operation for staff and residents alike.

Reliable performance

Built for long-term use, the SKG ISO A delivers consistent, quiet, and efficient lifting of small loads, making it perfect for hotels, restaurants, care facilities, and private homes. Its robust components ensure minimal downtime and reduced maintenance needs.