自由容器
Double-Rail Trolley Hoists
Stable and high-capacity wire rope lifting systems for
double-girder cranes and demanding industrial
handling.
Stable Double-Rail Travel
Load forces distributed
across two crane rails
Higher Lifting Capacity
For heavy machinery，molds
and industrial components
Standard to Ultra-Low
Headroom
Matched to available crane clearance
Smooth & Precise Control
Variable-speed lifting and
cross travel
自由容器
Hot Double-Rail Trolley Hoists
Two representative configurations for standard heavy
lifting and restricted-headroom crane applications.
20t Standard Double-Rail
Trolley Hoist
40t Ultra-Low-Headroom Double-Rail Trolley Hoist
20t Standard Double-Rail Trolley Hoist
Quick Details
· Rated Capacity: 20t
· Hoist Type: Wire rope hoist
· Trolley Type: Double-rail crab
· Reeving: 4/2
· Hook Path: 12/20/30/37m
· Cross Travel: Dual drive
· Control: Pendant / radio / cabin
· Duty: Project-specific
Packaging & Delivery
· Reinforced export frame
· Drum and rope protected
· Electrical cabinet packed separately
· Factory mechanical & electrical testing
· Container / flat-rack shipment
· Installation & commissioning support
Applications
· Heavy Machinery Assembly
· Large Mold Handling
· Pump & Motor Manufacturing
· Steel Fabrication
· Industrial Maintenance
· Double-Girder Overhead Cranes
自由容器
40t Ultra-Low-Headroom Double-Rail Trolley Hoist
· Rated Capacity: 40t
Quick Details
· Trolley Type: Ultra-low-headroom crab
· Crane Type: Double-girder overhead crane
· Drum Orientation: Parallel to cross travel
· Cross Travel: Dual direct-drive motors
· Lifting Height: Customized
· Control: Radio remote or cabin
· Duty: Project-specific
Packaging & Delivery
· Low-profile trolley frame protected
· Rope drum and motors packed securely
· Control cabinet sealed
· Rail gauge reviewed before manufacture
· Project cargo shipment
· Testing & commissioning support
Applications
· Low-Roof Manufacturing Plants
· Building Crane Upgrades
· Heavy Machinery Production
· Large Press & Mold Handling
· Power Equipment Assembly
· Heavy Double-Girder Cranes
自由容器
Custom Double-Rail Trolley Hoist
Configured around your load spectrum，crane rail gauge，available headroom and operating cycles.
Capacity &
Load Spectrum
Define max load，normal load and operating
frequency
Rail Gauge &
Wheel Loads
Match trolley gauge and rail loads to crane girders
Lifting Height
& Reeving
Configure hook path，rope drum and reeving
Headroom &
Trolley Structure
Choose standard,
low-headroom or
ultra-low-headroom
Speed，Duty &
Control
Match speeds to
cycles and
positioning
Safety &
Maintenance
Access
Configure overload，
brakes，limits and
platforms
Successful Cases
自由容器
Double-Rail Trolley Hoist FAQ
Quick answers for B2B buyers selecting hoists for
double-girder cranes.
1. What are Double-Rail Trolley Hoists?
Double-Rail Trolley Hoists are heavy-duty lifting systems
that travel on two parallel rails.
2. Where are they used?
Double-Rail Trolley Hoists are used on double-girder
cranes, workshops and production lines.
3. What capacities are available?
Double-Rail Trolley Hoists are available in different
capacities, lifting heights and duty classes.
4. What trolley designs are available?
Double-Rail Trolley Hoists can use standard, low-
headroom or ultra-low-headroom trolley designs.
5. What lifting speeds are available?
Double-Rail Trolley Hoists can use single-speed，dual-
speed or variable-frequency lifting.
6. Can they use auxiliary hoists?
Yes. Double-Rail Trolley Hoists can include main and
auxiliary lifting mechanisms.
7. Can they be customized?
Yes. Double-Rail Trolley Hoists can be customized by
capacity, rail gauge, reeving and control method.
8. What safety features are included?
Double-Rail Trolley Hoists can include overload
protection, limit switches, brakes and emergency stops.