BMGO 12 Ton 12m × 6m A5 Double Girder Semi-Gantry Crane Drawing
12 ton double girder semi-gantry crane drawing with 12m span, 6m lifting height, NR electric hoist, full VFD, pendant and remote control, and 40×40 rail.
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 12t-12m-6m A5.
The crane is a double girder semi-gantry crane fitted with an NR electric hoist and full VFD (variable frequency drive) on all motions. 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. This drawing shows the upper travel beam supported on the existing structure and the ground leg on the other side. This design is common for warehouses, workshops, and storage yards where one side of the building already has a beam or column suitable for crane support.
The crane uses pendant control and remote control, so the operator can work from the floor or from a safe distance. The lifting speed is 0.7–4.0 m/min with full VFD, giving smooth starts and precise stops. The crane is without hanging type — the control is not suspended from a hanging cable festoon but is provided as a pendant station and a radio remote. The flat bar 40×40 rail is used for the ground leg and the upper travel beam. The power supply is 3-phase, 220 V, 60 Hz, which is a common configuration for some overseas markets.
Project & Drawing Overview
- Equipment Type: BMGO Double Girder Semi-Gantry Crane with NR electric hoist, full VFD, pendant + remote control, without hanging type
- Product Model: BMGO 12t-12m-6m A5
- Drawing Views: Side elevation (showing ground leg and upper travel beam support) and cross-section view of trolley and legs
- Key Components: 1. Double girder bridge, 2. Trolley with NR electric hoist, 3. Ground leg with travel motor, 4. Semi-gantry frame (subassembly, 1 set), 5. Electric system
- Design Notes: Upper travel beam supported on existing structure; without hanging type; full VFD on all motions; flat bar 40×40 rail
- Drawing PDF: BMGO 12t-12m-6m A5 Double Girder Semi-Gantry Crane Drawing NR Electric Hoist 12 Ton Capacity 12m Span 6m Lifting Height Full VFD Pendant Remote Control Flat Bar Rail 40x40 Without Hanging Type 3P 220V 60Hz 1 Unit
Main Technical Parameters
| Technical Parameter | Specification |
|---|---|
| Crane Type | BMGO Double Girder Semi-Gantry Crane |
| Duty Class | M5 (ISO A5) |
| Lifting Capacity | 12 t (12,000 kg) |
| Crane Span | 12 m (12,000 ± 6 mm) |
| Lifting Height | 6 m |
| Lifting Speed | 0.7–4.0 m/min (full VFD) |
| Speed Control | Full VFD on all motions |
| Lifting Motor Power | 9.5 kW |
| Hoist Type | NR electric hoist |
| Track Gauge (Ground Leg) | 4,000 mm / 4,900 mm (reference) |
| Rail Type | Flat bar 40×40 |
| Control Mode | Pendant control + remote control |
| Hanging Type | Without hanging type (no hanging cable festoon) |
| Ambient Temperature | -10°C to +40°C |
| Upper Travel Beam Support | On existing structure |
| Power Supply | 3-phase, 220 V, 60 Hz |
| Quantity | 1 unit |
Hoist Mechanism Parameters
| Component / Motor Drive | Technical Specification |
|---|---|
| Hoist Type | NR electric hoist |
| Lifting Capacity | 12 t |
| Lifting Speed | 0.7–4.0 m/min (full VFD) |
| Lifting Motor Power | 9.5 kW |
| Lifting Height | 6 m |
| Working Duty | M5 |
| Speed Control | Full VFD |
| Power Supply | 220 V, 60 Hz, 3-phase |
Trolley & Crane Traveling Parameters
| Component / Motor Drive | Technical Specification |
|---|---|
| Trolley Travel Speed | Full VFD (per drawing) |
| Trolley Working Duty | M5 |
| Long Travel Speed | Full VFD (per drawing) |
| Long Travel Working Duty | M5 |
| Rail Type | Flat bar 40×40 |
| Speed Control | Full VFD |
| Power Supply | 220 V, 60 Hz, 3-phase |
Drawing Views & Structure Details
| View / Item | Description |
|---|---|
| Side Elevation (Left) | Shows the double girder bridge with the NR electric hoist on the trolley, the upper travel beam supported on the existing structure, and the ground-level leg with the travel drive. Span 12,000 ± 6 mm. Lifting height 6,000 mm (reference). Trolley height 585 mm / 600 mm (reference). Ground leg base 650 mm (reference). Flat bar 40×40 rail. Without hanging type. |
| 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 1,400 mm (reference). Ground leg track gauge 4,000 mm / 4,900 mm (reference). Long travel 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 long travel motor, upper travel beam supported on existing structure. Full VFD on all motions. Built for light to medium duty indoor lifting in warehouses, workshops, and storage yards. |
| Key Components | 1. Double girder bridge, 2. Trolley with NR electric hoist, 3. Ground leg with travel motor, 4. Semi-gantry frame (subassembly, 1 set), 5. Electric system |
| Control System | Pendant control + remote control. Without hanging type. Full VFD on hoist, trolley travel, and long travel. |
| Ambient Conditions | Ambient temperature -10°C to +40°C. Indoor use in warehouses, workshops, and storage yards. |
Technical Notes
Notes from the drawing sheet:
- Model code: BMGO 12t-12m-6m A5. "BMGO" = double girder semi-gantry crane. "12t" = lifting capacity. "12m" = span. "6m" = lifting height. "A5" = duty class.
- Control mode: Pendant control + remote control.
- Without hanging type: No hanging cable festoon. Pendant station and radio remote provided.
- Speed control: Full VFD on hoist, trolley travel, and long travel. Lifting speed 0.7–4.0 m/min.
- Upper travel beam support: Supported on existing structure (not a separate runway beam).
- Ground leg: Ground-level leg with long travel motor. Track gauge 4,000 mm / 4,900 mm (reference).
- Rail type: Flat bar 40×40.
- Ambient temperature: -10°C to +40°C.
- Power supply: 3-phase, 220 V, 60 Hz.
- 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 12 t BMGO double girder semi-gantry crane with 12 m span, 6 m lifting height, NR electric hoist, full VFD, pendant + remote control, and flat bar 40×40 rail. The upper travel beam is supported on the existing structure, and the crane is supplied without hanging type. Yuantai Crane builds to your site dimensions and local requirements.
| Step | What Happens |
|---|---|
| Step 1: Send site data | Send lifting capacity (12 t), span (12 m), lifting height (6 m), rail type (flat bar 40×40), building structure information (for upper travel beam support), ambient temperature (-10°C to +40°C), and control requirements (pendant + remote, without hanging type). |
| 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), full VFD configuration, control mode (pendant + remote, without hanging type), power supply (3-phase 220 V 60 Hz), duty class (A5/M5), and rail type (flat bar 40×40). |
| Step 4: Manufacturing and delivery | Built to international standards. Factory acceptance test (FAT) before dispatch. |
FAQ (BMGO 12t-12m-6m A5 Double Girder Semi-Gantry Crane Drawing)
Common questions about semi-gantry cranes, BMGO double girder semi-gantry cranes, NR electric hoists, 12 ton capacity, 12 m span, 6 m lifting height, full VFD, pendant + remote control, flat bar 40×40 rail, and 3-phase 220 V 60 Hz power supply.
1. What is a BMGO double girder semi-gantry crane?
A BMGO 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 (two ground legs) and from an overhead crane (both sides on elevated runway beams). BMGO 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 does "without hanging type" mean on this semi-gantry crane?
Without hanging type means the crane is not supplied with a hanging cable festoon system for the pendant control. Instead, the control is provided as a pendant station and a radio remote control. This is useful in workshops where a hanging cable would interfere with the load, or where the building height does not allow a festoon system. The operator can still control the crane from the floor using the pendant or from a distance using the remote.
3. What is full VFD and why is it used on this semi-gantry crane?
Full VFD (variable frequency drive) means the hoist, trolley travel, and long travel are all driven by variable frequency drives. This gives smooth acceleration and deceleration, precise load positioning, and lower mechanical wear. On this crane, the lifting speed is 0.7–4.0 m/min with full VFD, which is useful for handling delicate or heavy loads where a slow, controlled lift is needed. VFD also reduces the starting current on the motors and helps the crane run more efficiently.
4. What is an NR electric hoist and how does it work on this crane?
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 lifting motor, a travel mechanism, and a wire rope drum. On this semi-gantry crane, the NR hoist is mounted on the trolley and handles the 12 t lifting capacity. With full VFD, the hoist gives a smooth lifting speed range of 0.7–4.0 m/min.
5. What does BMGO 12t-12m-6m A5 mean?
BMGO = double girder semi-gantry crane. "12t" = 12 t lifting capacity. "12m" = 12 m span. "6m" = 6 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 is the flat bar 40×40 rail used for?
Flat bar 40×40 is the rail profile used on this semi-gantry crane. Flat 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 flat profile gives a running surface for the wheels and is suitable for the loads of this crane. It is similar in function to square bar rail but with a flat cross-section.
7. What is the ambient temperature range for this semi-gantry crane?
The ambient temperature range for this crane is -10°C to +40°C. This is a standard range for indoor warehouse and workshop use. If your site has more extreme temperatures, Yuantai can supply the crane with different lubricants, motor insulation, and cable jackets to match your conditions.
8. What power supply does this semi-gantry crane need?
This crane runs on 3-phase, 220 V, 60 Hz. This covers the 9.5 kW lifting motor, the trolley travel motors, the long travel motors, the VFD drives, 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, rail type, building structure information (for upper travel beam support), ambient temperature, 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 full VFD and 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: 12 t)
- Span: 5.0–35.0 m (this model: 12 m)
- Lifting height: 3.0–20.0 m (this model: 6 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)
- Speed control: Two-speed or full VFD (this model: full VFD)
- Control mode: Pendant, remote, cabin, or combination (this model: pendant + remote, without hanging type)
- Rail type: Flat bar, square bar, P-type rail, or QU-type rail (this model: flat bar 40×40)
- Ambient temperature: -10°C to +40°C (this model) or custom
- Power supply: 3-phase 220 V / 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 12 t capacity on a 12 m span with 6 m lifting height, NR electric hoist, full VFD, pendant + remote control, flat bar 40×40 rail, and 3-phase 220 V 60 Hz power supply 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 crane is supplied without hanging type, using a pendant station and radio remote for control.
| 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 12 m | Lifting height 6 m | Upper travel beam on existing structure | Ground leg with travel motor |
| Precise lifting with smooth control Heavy or delicate loads need slow, controlled lifting. | NR electric hoist with full VFD. Lifting speed 0.7–4.0 m/min. Pendant + remote control. | Capacity 12 t | Lifting 0.7–4.0 m/min | Full VFD | A5 duty |
| No hanging cable system, clean workspace Building height or workspace does not allow hanging festoon. | Without hanging type. Pendant station and radio remote control provided. Flat bar 40×40 rail for simple installation. | Without hanging type | Pendant + remote | Flat bar 40×40 rail | Ambient -10°C to +40°C | 3P 220V 60Hz |
Does This Semi-Gantry Crane Fit Your Facility?
- 12 t BMGO double girder semi-gantry crane: 12 m span, 6 m lifting height.
- NR electric hoist: lifting speed 0.7–4.0 m/min with full VFD.
- Full VFD on all motions: smooth starts, precise stops, lower wear.
- Pendant control + remote control: flexible operation.
- Without hanging type: no hanging cable festoon; pendant station and radio remote provided.
- Flat bar 40×40 rail: simple, low-cost rail profile for light and medium duty.
- Upper travel beam supported on existing structure: lower cost and simpler installation.
- Ambient temperature -10°C to +40°C: standard indoor range.
- 3-phase 220 V 60 Hz power supply: matched to your local grid.
- 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, rail type, building structure information, ambient temperature, 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.)
Just leave a message via the contact form and our hoist and crane engineer will contact you with in 24working hours.
Get Your Custom Quote–Quick & Easy
Fill in what you know. Skip what you don't – we'll help.Any question will be reply with 24 working hours