10 Ton LH Bridge Crane and Steel Structures for US

Discover our 10-ton LH bridge crane and durable steel structures, perfect for equipment production in the US. Boost your efficiency and safety today!

This customer is from the United States, they are a heavy equipment manufacturer, daily responsible for the production of hydraulic pumps, industrial compressors, customized high power drive systems and so on. With the recent increase in their order volume, the layout and lifting method of their original machine shop could no longer meet their production needs. Therefore, the client decided to upgrade the existing workshop by introducing a set of bridge cranes capable of heavy-duty, high-frequency, precision work and reinforcing the structure of the plant.

First Communication with Customers

Customers contacted us in 2025 through a post we shared on Facebook to get a suitable lifting solution for them. During the communication, the customer made it clear that they wanted to minimize the problems of plant modifications and downtime due to the installation. Based on their concerns, we conducted a video conference with the client to understand in detail the roof structure, column locations and piping layout of the client's shop. A preliminary proposal for a double girder model of overhead cranes.

Lifting Requirements and Field Challenges

After a detailed survey of the customer's existing workshop, we summarized the following key requirements:

Needs/Challenges	Specific description
High workload	The crane is used for 6~8 hours per day, and 8~12 lifts need to be completed per hour. It mainly lifts bases, gearboxes and drive housings of more than 8 tons and requires a working class of A6 or even higher.
Severe Vertical Clearance Constraints	The lower edge of the roof trusses was only 7 meters from the ground, and the top was densely populated with ventilation ducts and fire sprinkler lines. After the installation of the conventional 10-ton overhead crane, the effective lifting height under the hook was less than 5 meters, which could not satisfy the lifting and turning of the highest workpiece (the compressor housing of about 2.2 meters high).
Precise Positioning Requirements	Accurate alignment is required when mounting a heavy-duty pump body or gearbox to a machining center fixture. The operator needs a very low minimum stabilizing speed to fine-tune.
Lack of crane support structure	The original design of the workshop only considered light-duty cantilever cranes, without the runway girders and column reinforcements required for bridge cranes. Therefore the customer needs a complete set of steel structure.

Customized Solutions We Offer

In response to the above challenges, we proposed a one-stop solution for a 10-ton LH type bridge crane + full steel structure design and supply.

Compact double girder low headroom construction
We have adopted the LH-type design, which shortens the vertical height of the trolley and hoist by hundreds of millimeters, giving the hook an effective lifting height of 5.8 meters. Even with a headroom of 7 meters, large accessories can be lifted easily and safely over the workpiece below.
Frequency conversion control and precise positioning
Main lifting and large and small cars are equipped with frequency converter. Operators can achieve micro-speed control via remote control to smoothly drop the 8-ton gearbox into the machining center fixture
Integrated load monitoring and safety protection
A high-precision tensile force sensor (accuracy ±1%) is mounted on top of the hoist, with digital displays in the control room and on the remote control for real-time indication of the lifting weight. When the load reaches 11 tons (110% of rated value), the system issues an audible and visual alarm and automatically locks the direction of ascent. It is also equipped with upper and lower limits, crash buffers, and emergency stops.

Technical parameters	Value
Rated lifting capacity	10 tons
Span	22.5 meters
Lifting height	5.8 meters
Job level	A6
Operation mode	Wireless Remote Control + Pendant Control
Control protection level	IP57

Product Design and Specifications

10-ton Low Headroom Bridge Crane Overview

In confined vertical spaces, this 10-ton double-girder bridge crane can lift anything. To increase hook travel, our designers lowered the footprint of the trolley and hoist. In buildings with little above clearance, the outcome provides dependable performance, accurate control, and simpler maintenance.

1. Girder Profile

High-strength rolled I-beams composed of A572 Grade 50 steel are used in the crane. The strength-to-weight ratio of this material is good. To manage bending and shear under dynamic stresses, engineers size the flange and web. Where necessary, they install welded splice plates and stiffeners. To keep the bridge level under stress, the girder has a tiny camber built into it. In order to maintain runway alignment, fabrication comes after shop welding and dimensional control.

2. End Trucks

End trucks minimize flex at maximum load by using a welded box-section construction. For a long service life, we heat-treat and mill wheels made of forged alloy steel. The trucks include sealed lubrication locations and precise bearings. Correct wheel-to-rail contact is maintained via flange wear pads and adjustable end-play. Buffers and limit switches can be mounted on the truck frame.

3. Hoist Mechanism

The system uses a dual-speed wire-rope hoist with two falls (two-part reeving). Two falls cut rope pull and spread load across the drum. The hoist pairs with a VFD to give smooth starts and stops. The VFD reduces load sway and extends rope life. The hoist includes a mechanical holding brake, drum guard, rope guide, and rope lubrication plan. Inspect rope lay, end fittings, and drum grooves often.

4. Low Headroom Trolley

The trolley's structure is small, saving 300 mm of headroom. A small reduction gearset with a low-profile motor are used by designers. Easy access panels are created by technicians for engine maintenance and gearbox oil inspections. The hook is kept as close to the girder as feasible by the trolley. Despite having little overhead room, this arrangement maintains good performance.

5. Load Monitoring

An integrated multifunction load display with an accuracy of ±1% is used by the crane. The actual hook load is read by a calibrated transducer or load cell. When lifting exceeds 110% of rated capacity, the system locks out and sounds an overload alarm. For checks, we provide calibration data and a straightforward user interface. The indicator should be tested by operators before to shifts.

6. Safety Features

The crane has well-marked travel limits and end stops with shock-absorbing buffers. The emergency stop on the pendant is easily accessible. The device features visual warning lights for movement and audio horns. ANSI/ASME B30.2 requirements for multi-crane configurations are met by anti-collision switches. Phase-failure detection, upper/lower limit switches, overload protection, and an emergency lowering process are also covered in the design. Demand operator training and pre-shift checks. Test safety devices frequently and maintain a maintenance diary.

Steel Structures for Crane Support

The customer's facility required reinforced steel runway structures to support the crane and distribute loads to the existing columns. Design specifications included:

Runway Beams: A36 steel beams sized W12×120 installed on 3 meter centers. Beams were checked for camber within ±5 millimeters to ensure level travel.
Purlin Reinforcements: Steel purlins and cross-bracing installed between runway beams to prevent lateral displacement under dynamic loads. According to AISC guidelines, cross-bracing improves structural stability by 15%.
Column Reinforcement: Concrete encapsulation around column bases to increase bearing capacity. Geotechnical analysis confirmed an allowable soil pressure of 150 kPa.
Anchorage and Fasteners: High-tensile anchor bolts (Grade 8.8) embedded in epoxy grout ensured secure connections between base plates and the concrete foundation.
Safety Access Platforms: Walkways with handrails installed along the crane runway for overhead inspection and maintenance. OSHA recommends 0.9 meter minimum walkway width for fall protection compliance (OSHA, 2023).

Integration with Facility Layout

To maximize workspace efficiency, the crane runway spanned 24 meters, covering all three machining zones. The crane runway girders were mounted 6 meters above the shop floor, providing 6.5 meters of hook lift to accommodate tall assemblies.