BMGO 7.5 Ton 9.5m × 8m A5 Double Girder Semi-Gantry Crane Drawing
7.5 ton double girder semi-gantry crane drawing with 9.5m span, 8m lifting height, NR electric hoist, pendant and remote controls, and 40m runway.
Crane Manufacturer: Yuantai Cranes – 30+ Years Professional Crane Manufacturer from China
Category: Semi Gantry Crane Drawing
Tags: semigantrycranedrawing
Overview:
This drawing is for a BMGO double girder semi-gantry crane, model BMGO 7.5t-9.5m-8m A5.
The crane is a double girder semi-gantry crane fitted with an NR electric hoist. A semi-gantry crane has one leg running on a ground-level rail and one end supported on an existing runway beam or building structure — in this drawing, the upper travel beam is supported on the existing structure. This design is common for warehouses, workshops, and storage yards where one side of the building already has a column or beam suitable for crane support, and the other side needs a ground-level leg with a wheel.
The crane uses pendant control and remote control, so the operator can work from the floor or from a safe distance. The long travel speed reaches 30 m/min, driven by a vertical motor mounted on the ground-level leg. The trolley travel speed is 2.0–20 m/min with variable frequency or two-speed control. The runway length is 40 m. The crane includes overload protection, upper limit switch, and audible and visual alarm for long travel movement. The drawing also marks the hook left and right limits for trolley travel.
Project & Drawing Overview
- Equipment Type: BMGO Double Girder Semi-Gantry Crane with NR electric hoist, pendant + remote control
- Product Model: BMGO 7.5t-9.5m-8m A5
- Drawing Views: Side elevation (showing ground leg and upper travel beam support) and cross-section view of trolley and legs
- Key Components: 1. Trolley with NR electric hoist, 2. Double girder bridge, 3. Ground leg with vertical travel motor, 4. Upper travel beam supported on existing structure, 5. Electric system
- Design Notes: Upper travel beam supported on existing structure; hook left and right limits marked; overload protection, upper limit switch, and audible and visual alarm for long travel included
- Drawing PDF:BMGO 7.5t-9.5m-8m A5 Double Girder Semi-Gantry Crane Drawing & Technical Parameters - NR Electric Hoist, Pendant + Remote Control, Vertical Motor Long Travel, Runway 40m, Square Bar Rail 40×40
Main Technical Parameters
| Technical Parameter | Specification |
|---|---|
| Crane Type | BMGO Double Girder Semi-Gantry Crane |
| Duty Class | M5 (ISO A5) |
| Lifting Capacity | 7.5 t (7,500 kg) |
| Crane Span | 9.5 m (9,500 ± 8 mm) |
| Lifting Height | 8 m |
| Lifting Speed | 0.8 / 5.0 m/min (two-speed) |
| Trolley Travel Speed | 2.0–20 m/min |
| Long Travel Speed | 3.0–30 m/min |
| Lifting Motor Power | 1.5 / 9.5 kW |
| Trolley Travel Motor Power | 2 × 0.4 kW |
| Long Travel Motor Power | 2 × 1.1 kW (vertical motor) |
| Hoist Type | NR electric hoist |
| Track Gauge (Trolley / Crane) | 1.7 m / 9.5 m |
| Max. Wheel Load | 62.2 kN |
| Rail Type | Square bar 40×40 |
| Runway Length | 40 m |
| Control Mode | Pendant control + remote control |
| Safety Features | Overload protection, upper limit switch, audible and visual alarm for long travel |
| Hook Limits | Left and right limits marked on drawing |
| Upper Travel Beam Support | On existing structure |
| Power Supply | 3-phase, 415 V, 50 Hz |
| Quantity | 1 unit |
Hoist Mechanism Parameters
| Component / Motor Drive | Technical Specification |
|---|---|
| Hoist Type | NR electric hoist |
| Lifting Capacity | 7.5 t |
| Lifting Speed | 0.8 / 5.0 m/min (two-speed) |
| Lifting Motor Power | 1.5 / 9.5 kW |
| Lifting Height | 8 m |
| Working Duty | M5 |
| Power Supply | 415 V, 50 Hz, 3-phase |
Trolley & Crane Traveling Parameters
| Component / Motor Drive | Technical Specification |
|---|---|
| Trolley Travel Speed | 2.0–20 m/min |
| Trolley Travel Motor Power | 2 × 0.4 kW |
| Trolley Working Duty | M5 |
| Trolley Track Gauge | 1.7 m |
| Long Travel Speed | 3.0–30 m/min |
| Long Travel Motor Power | 2 × 1.1 kW |
| Long Travel Motor Type | Vertical motor, mounted on ground-level leg |
| Long Travel Working Duty | M5 |
| Rail Type | Square bar 40×40 |
| Runway Length | 40 m |
| Max. Wheel Load | 62.2 kN |
| Power Supply | 415 V, 50 Hz, 3-phase |
Drawing Views & Structure Details
| View / Item | Description |
|---|---|
| Side Elevation (Left) | Shows the ground-level leg with vertical travel motor and the upper travel beam supported on the existing structure. Span 9,500 ± 8 mm. Overall runway dimension 10,391 mm (reference). Top of rail to hook on the ground leg side: 8,000 mm (reference). Overall crane height 10,000.4 mm (reference). Hook approach to upper side 700 mm (reference). Hook left and right limits marked on the drawing. Ground leg track gauge 1.7 m. Upper travel beam support on existing structure. |
| Cross-Section View (Right) | Shows the trolley with NR electric hoist, the double girder bridge, and the two legs (one ground leg and one upper travel beam side). Trolley overall width 3,600 mm. Main beam spacing 3,000 mm. Trolley wheel base 1,400 mm. Ground leg base width 4,500 mm / 5,000 mm (reference). Long travel vertical motor visible on the ground leg. |
| Structure Type | BMGO double girder semi-gantry crane. Double girder bridge structure, NR electric hoist on trolley, ground-level leg with vertical long travel motor, upper travel beam supported on existing structure. Built for light to medium duty indoor lifting in warehouses, workshops, and storage yards. |
| Key Components | 1. Trolley with NR electric hoist, 2. Double girder bridge, 3. Ground leg with vertical travel motor, 4. Upper travel beam supported on existing structure, 5. Electric system |
| Safety Features | Overload protection, upper limit switch, audible and visual alarm for long travel movement. Hook left and right limits marked on the drawing. |
| Control System | Pendant control + remote control. Operator can work from the floor or from a safe distance. |
Technical Notes
Notes from the drawing sheet:
- Model code: BMGO 7.5t-9.5m-8m A5. "BMGO" = double girder semi-gantry crane. "7.5t" = lifting capacity. "9.5m" = span. "8m" = lifting height. "A5" = duty class.
- Control mode: Pendant control + remote control.
- Safety features included: Overload protection, upper limit switch, audible and visual alarm for long travel movement.
- Hook limits: Left and right limits marked on the drawing for trolley travel.
- Upper travel beam support: Supported on existing structure (not a separate runway beam).
- Ground leg: Ground-level leg with vertical long travel motor. Track gauge 1.7 m.
- Runway length: 40 m.
- Rail type: Square bar 40×40.
- Duty class A5 / M5: light to medium duty for indoor warehouse and workshop use.
- Quantity: 1 unit.
- Drawings and specifications are for reference. For different span, lifting height, speed, motor power, or control configuration, contact us for a free engineering review.
- Do not reproduce, distribute, or manufacture from these drawings without written authorization from Yuantai Crane Machinery. Yuantai is not liable for unauthorized use.
How to Get a Customized Semi-Gantry Crane
This drawing shows a 7.5 t BMGO double girder semi-gantry crane with 9.5 m span, 8 m lifting height, NR electric hoist, pendant + remote control, vertical motor long travel up to 30 m/min, and 40 m runway. The upper travel beam is supported on the existing structure, and the ground leg runs on a square bar 40×40 rail. Yuantai Crane builds to your site dimensions and local requirements.
| Step | What Happens |
|---|---|
| Step 1: Send site data | Send lifting capacity (7.5 t), span (9.5 m), lifting height (8 m), runway length (40 m), rail type (square bar 40×40), building structure information (for upper travel beam support), and control requirements (pendant + remote). |
| Step 2: Free CAD drawing and engineering review | We prepare general arrangement drawings, wheel load checks, and structural layouts at no cost. For semi-gantry cranes, we also verify the upper travel beam support on the existing structure and the ground leg foundation requirements. |
| Step 3: Confirm the technical details | Lock in hoist type (NR electric hoist), trolley travel speed (2.0–20 m/min), long travel speed (3.0–30 m/min), vertical motor configuration, control mode (pendant + remote), power supply (3-phase 415 V 50 Hz), duty class (A5/M5), and safety features (overload protection, upper limit switch, audible and visual alarm). |
| Step 4: Manufacturing and delivery | Built to international standards. Factory acceptance test (FAT) before dispatch. |
FAQ (BMGO 7.5t-9.5m-8m A5 Double Girder Semi-Gantry Crane Drawing)
Common questions about semi-gantry cranes, BMGO double girder semi-gantry cranes, NR electric hoists, 7.5 ton capacity, 9.5 m span, 8 m lifting height, pendant + remote control, vertical motor long travel, and square bar rail 40×40.
1. What is a double girder semi-gantry crane?
A double girder semi-gantry crane is a lifting system with two main girders supported on one side by a ground-level leg that runs on a rail, and on the other side by a travel beam supported on an existing building structure or column. It is different from a full gantry crane, which has two ground-level legs, and from an overhead crane, which runs entirely on elevated runway beams on both sides. Semi-gantry cranes are used in warehouses, workshops, and storage yards where one side of the building already has a beam or column suitable for crane support, and the other side needs a ground leg because the building structure cannot carry the full crane load.
2. What is an NR electric hoist?
NR electric hoist is a type of wire rope electric hoist used on overhead and gantry cranes. The "NR" designation refers to the hoist series and its design features, which typically include a compact frame, a two-speed lifting motor, a built-in travel mechanism, and a wire rope drum. On this semi-gantry crane, the NR hoist is mounted on the trolley and handles the 7.5 t lifting capacity. Lifting speed is 0.8 / 5.0 m/min, which gives the operator a slow speed for precise positioning and a faster speed for normal lifting.
3. Why is a vertical motor used for long travel on this semi-gantry crane?
The vertical motor is used on the ground-level leg of the semi-gantry crane because the travel drive is mounted vertically on the leg structure. This arrangement saves space, keeps the motor and gearbox compact, and makes maintenance easier. It is a common design for semi-gantry cranes because the ground leg has limited space for a horizontal drive. The vertical motor on this crane delivers a long travel speed of 3.0–30 m/min on a 40 m runway.
4. What is the difference between pendant control and remote control?
Pendant control is a wired control box suspended from the crane. The operator walks alongside the load and controls the crane from the floor. It gives direct, reliable control and is common for light and medium duty cranes. Remote control is a wireless radio control that lets the operator work from a distance or from a position with a better view. On this crane, both modes are available, so the operator can choose the best method for each lift. For precise positioning near the load, the pendant is convenient. For lifting over obstacles or from a higher position, the remote is better.
5. What does BMGO 7.5t-9.5m-8m A5 mean?
BMGO = double girder semi-gantry crane. "7.5t" = 7.5 t lifting capacity. "9.5m" = 9.5 m span. "8m" = 8 m lifting height. "A5" = ISO A5 duty class (M5). A5 is a light to medium duty class, suitable for indoor warehouse and workshop use where the crane is not working continuously at full load.
6. What safety features are included on this semi-gantry crane?
This crane includes overload protection, which stops the hoist if the load exceeds the rated capacity. The upper limit switch stops the hook at the top of its travel to prevent over-winding. The audible and visual alarm for long travel movement warns people on the ground when the crane is moving along the runway. The drawing also marks the hook left and right limits, which are the travel limits for the trolley. These features together make the crane safe to operate in a busy warehouse or workshop.
7. What is the rail type square bar 40×40 used for?
Square bar 40×40 is the rail profile used on this semi-gantry crane. Square bar rail is a simple, low-cost rail type used for light and medium duty cranes where the wheel load is moderate. It is easy to install on the ground leg and on the upper travel beam. The square profile gives a flat running surface for the wheels and is suitable for the 62.2 kN maximum wheel load of this crane.
8. What power supply does this semi-gantry crane need?
This crane runs on 3-phase, 415 V, 50 Hz. This covers the 1.5 / 9.5 kW two-speed lifting motor, the 2 × 0.4 kW trolley travel motors, the 2 × 1.1 kW long travel vertical motors, and the control system. If your site uses a different voltage or frequency, Yuantai can supply the crane with a custom power supply to match your local grid.
Need a Drawing and Price for Your Semi-Gantry Crane?
Send your site dimensions, capacity, span, lifting height, runway length, rail type, building structure information (for upper travel beam support), and control requirements. If you need a BMGO double girder semi-gantry crane, a semi-gantry crane with NR electric hoist, or a warehouse semi-gantry crane with pendant + remote control, Yuantai Crane will send a CAD layout drawing and a price within 24 hours.
Yuantai Semi-Gantry Crane & Overhead Crane Solutions
Yuantai Crane builds custom BMGO double girder semi-gantry cranes, single girder semi-gantry cranes, overhead cranes, and gantry cranes for warehouses, workshops, storage yards, and industrial sites worldwide. Each crane is built to your capacity, span, lifting height, hoist type, control mode, rail type, runway length, and power supply.
Typical range:
- Lifting capacity: 1–50 t (this model: 7.5 t)
- Span: 5.0–35.0 m (this model: 9.5 m)
- Lifting height: 3.0–20.0 m (this model: 8 m)
- Duty class: ISO A3–A7 (this model: A5)
- Hoist type: NR electric hoist, wire rope hoist, or open winch (this model: NR electric hoist)
- Trolley travel speed: two-speed or VFD (this model: 2.0–20 m/min)
- Long travel speed: two-speed or VFD (this model: 3.0–30 m/min)
- Long travel motor: horizontal or vertical (this model: vertical motor)
- Control mode: Pendant, remote, cabin, or combination (this model: pendant + remote)
- Rail type: Square bar, P-type rail, or QU-type rail (this model: square bar 40×40)
- Power supply: 3-phase 380 V / 415 V / 440 V 50 Hz or 60 Hz (customizable)
- Applications: Warehouses, workshops, storage yards, light industrial plants
Yuantai handles engineering design, non-standard structural customization, factory acceptance testing (FAT), export packing, logistics, and installation guidance.
Engineering and Customization Support
A 7.5 t capacity on a 9.5 m span with 8 m lifting height, NR electric hoist, pendant + remote control, vertical motor long travel up to 30 m/min, 40 m runway, and square bar 40×40 rail is a typical light to medium duty semi-gantry crane project. This drawing shows the structural layout, ground leg design, upper travel beam support, and electrical system Yuantai Crane uses for semi-gantry crane projects. The upper travel beam is supported on the existing structure, which saves cost and simplifies installation.
| Site Requirement | Yuantai Solution | Drawing Parameters |
|---|---|---|
| One side of building has a beam for crane support, other side needs ground leg Standard overhead crane runway is not available on both sides. | BMGO double girder semi-gantry crane with upper travel beam supported on existing structure and ground-level leg on the other side. | Span 9.5 m | Lifting height 8 m | Upper travel beam on existing structure | Ground leg with vertical motor |
| Light to medium duty indoor lifting Warehouse or workshop with moderate lifting frequency. | NR electric hoist with two-speed lifting (0.8 / 5.0 m/min). A5/M5 duty class. Pendant + remote control. | Capacity 7.5 t | Lifting 0.8/5.0 m/min | Trolley 2.0–20 m/min | Long travel 3.0–30 m/min | A5 duty |
| Safety and visibility in a busy indoor area Overload and travel alarms needed for safe operation. | Overload protection, upper limit switch, and audible and visual alarm for long travel. Hook left and right limits marked. | Overload protection | Upper limit switch | Audible + visual alarm | Hook L/R limits | 40 m runway | Square bar 40×40 rail |
Does This Semi-Gantry Crane Fit Your Facility?
- 7.5 t BMGO double girder semi-gantry crane: 9.5 m span, 8 m lifting height.
- NR electric hoist: two-speed lifting 0.8 / 5.0 m/min.
- Trolley travel 2.0–20 m/min, long travel 3.0–30 m/min: fast cycle times for a 40 m runway.
- Vertical motor long travel: compact drive on the ground leg.
- Pendant control + remote control: flexible operation in warehouse and workshop environments.
- Overload protection, upper limit switch, audible + visual alarm: safe operation in busy areas.
- Upper travel beam supported on existing structure: lower cost and simpler installation.
- Square bar 40×40 rail: simple, low-cost rail profile for light and medium duty.
- A5/M5 duty class: light to medium duty for indoor use.
Not Sure If This Layout Fits Your Site?
Send us your capacity, span, lifting height, runway length, rail type, building structure information, control requirements, and power supply. Yuantai Crane engineers will send a free CAD general arrangement drawing, structural review, and price within 24 hours.
Yuantai Cranes
Overhead Crane Manufacturer with CE, ISO, SGS, CNEX Certificates.
- Main Specifications - Capacity: 0.5–550 tons | Span: up to 40m | Speed: 0.8–12 m/min | Duty: A3–A7 | Power: 380–690V, 50/60Hz | Control: pendant/remote/cabin
- Full engineering: FEA/PLC/VFD + in-house build + global delivery + on-site support, for workshops, factories, EPC contractors, industrial projects, etc.
- Support: design, manufacturing, testing, service – end-to-end, customized lifting solutions worldwide.
How to Get an Accurate Crane Price for Your Application?
Tips: Copy the spec list, fill in your details, and paste it into the form on the right/ down-below for a quick price.
- Crane type:_____ . (e.g., overhead crane, gantry crane, jib crane)
- Max weight to lift:_____ tons. (e.g., 2t, 5t, 10t, 20t, 50t)
- Lifting height:_____ m. (How high does the hook need to reach?
- Workshop width (span):_____ m . (Distance between the two crane rails)
- Travel distance:_____ m . (How long does the crane need to move along the runway?)
- Control type:_____. (Pendant / remote / cabin Control)
- Power supply:_____. (Local voltage & frequency – e.g., 380V, 50Hz, 3-phase)
- What will it be used for?_____ (e.g., steel fabrication, concrete products, mold handling, general manufacturing, etc.)
- Any special requirements?_____ (e.g., extreme temperature, dusty or explosive environment, special paint color, etc.)
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