Lifts

Service lift

Type



Application:

 
• Fast transport of goods up to 300 kg (mainly food)
 
• Commercial sector and residential houses
 
• Max. height of lift car 1.2 m
 
• Max. available car area of the lift: 1 m²

 
Drive concept:

 
• Traction drive
 
• Drum drive
 
• Chain drive
 
• Sometimes, also hydraulic drive
 

Machine room

Directly above or adjacent to the lift well 

Advantages:

 
1. Travel height freely selectable
 
2. Operating speed freely selectable
 
3. Compact design
 
4. Requires little space
 
5. Requires no separate space for machine room
 
6. Subsequent installation into existing buildings possible
 
7. Loading at serving height possible

Key components

Drive unit
comprising motor, gearbox, traction sheave (chain sprocket, rope drum) and failsafe brake
Motors
most service lifts use three-phase motors; lifts running at higher speed may also use direct current motors
Gearbox
Cylindrical, worm or planetary gear
Brake system
Drum brake, disk brake
Control system
mostly microprocessor controls 

Safety devices

Device for locking landing doors:
Safety devices which prevent a landing door from being opened if the lift car is not at that landing

 
• Tower bolts
 
• Hook bolts

Safety gear: 
Safety device to guard against free fall of the lift car; actuated by an overspeed governor

 
1. Instantaneous safety gear
 
2. Progressive safety gear

Overspeed governor:
Tripping mechanism for safety gear (actuated by centrifugal force) 

Ascending car overspeed protection:
not required

Buffers
Devices limiting the travel of lift car and counterweight

 
• Energy-accumulating shock absorbers
 
• Energy-dissipating shock absorbers

Special features

Safety gear, overspeed governor and buffers are only required if the lift pit is accessible. 

Regulations and standards

2006/42/EC :
  DIRECTIVE 2006/42/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast).

German Ordinance on Industrial Safety and Health (BetrSichV):
Ordinance concerning the protection of safety and health in the provision of work equipment and its use at work, concerning safety when operating installations subject to monitoring and concerning the organization of industrial safety and health at work (Betriebssicherheitsverordnung - Ordinance on Industrial Safety and Health – BetrSichV)

DIN EN 81-3 / 05/2010 (updated: 2011-03-02 )
TRA 400 Technical Rules for Lifts (Service Lifts), out of order

Goods-only lift

Type



Application

 
• Goods lift; no passenger transport
 
• Load bearing capacity of up to 2000 kg
 
• Max. available car area of the lift 2.5 m²
 
• Operating speed of up to 0.3 m/s
 
• Max. travel height 12 m
 
• Maximum number of landings: 3

Drive concept

 
• Rope drum
 
• Direct and indirect acting hydraulic
 
• Chain sprocket
 
• Rarely spindle or rack drive
 

Machine room:

Directly above or adjacent to the lift well 


Advantages

 
• Simplified design
 
• Does not require separate machine room, a lockable cabinet is sufficient

Key components



Drive unit comprising motor, gearbox, rope drum (or chain sprocket, ballscrew nut) brake; hydraulic unit with pump and valves, hydraulic ram
Motors
Three-phase motors
Gearbox
Cylindrical, worm or planetary gear
Brake system
Drum brake, disk brake
Control system
mostly microprocessor controls 


Safety devices

Device for locking landing doors
Safety devices which prevent a landing door from being opened if the lift car is not at that landing

 
• Tower bolts
 
• Flap locks

Safety gear - to guard lift cars against free fall

• Instantaneous safety gear
• Rupture valve
• Pawl device
 

Overspeed governor:
Tripping mechanism for  safety gear (actuated by centrifugal force)

Buffers
Devices limiting the travel of lift car and counterweight

Special features

Special types of goods-only lifts are underfloor lifts and container lifts

Regulations and standards

2006/42/EC :
DIRECTIVE 2006/42/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast).

German Ordinance on Industrial Safety and Health (BetrSichV):
Ordinance concerning the protection of safety and health in the provision of work equipment and its use at work, concerning safety when operating installations subject to monitoring and concerning the organization of industrial safety and health at work (Betriebssicherheitsverordnung - Ordinance on Industrial Safety and Health – BetrSichV)

DIN EN 81-31 / 08/2010  (updated: 2011-03-02 )
TRA 300 Technical Rules for Lifts (Goods only lifts, container lifts, underfloor lifts), out of order

Warehouse lift

Type



Application

 
• Goods lift for exclusive use in agricultural warehouses
 
• Load bearing capacity of up to 1000 kg
 
• Operating speed of up to 0.3 m/s
 
• Max. available car area of the lift 2.5 m² 

Drive concept
Drum drive only

Machine room
Directly above or adjacent to the lift well 

Advantages

 
1. Max. travel height 12 m
 
2. Simplified design adjusted to agricultural warehouses
 
3. Requires little space
 

Key components

Drive unit
comprising motor, gearbox, rope drum and failsafe brake

Control system
mostly relay controls

Safety devices

Device for locking landing doors

 
• No landing doors
 
• Lift well guarded by barriers on each landing
 
• Direct mechanical locking prevents barriers from being opened accidentally

Safety device to prevent free fall
In most cases instantaneous safety gear in conjunction with overspeed governor 

Buffers
Only required if lift pit is accessible

Special features 
Lift well made of wire mesh or wooden slats

Regulations and standards

2006/42/EC:
DIRECTIVE 2006/42/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast).

German Ordinance on Industrial Safety and Health (BetrSichV):
Ordinance concerning the protection of safety and health in the provision of work equipment and its use at work, concerning safety when operating installations subject to monitoring and concerning the organization of industrial safety and health at work (Betriebssicherheitsverordnung - Ordinance on Industrial Safety and Health – BetrSichV)

9. GPSGV (2006/42/EC ) (updated: 2011-03-02 )
TRA 700 Technical Rules for Lifts (Warehouse Lifts), out of order