7-Aug-2025

China Direct Supply Guide: 5-20 Ton Single-Girder Gantry Cranes with OEM Customization & Factory Pricing

Introduction

Dongqi Crane, a leading Chinese manufacturer, delivers cost-effective, heavy-duty single-girder gantry cranes (5-20 ton capacity) with full OEM customization. Sourced directly from our ISO-certified factories, these cranes reduce procurement costs by 30-35% compared to Western brands while meeting FEM, ISO, and CE standards.

1. Product Overview: Why Choose Single-Girder Gantry Cranes?

Key Features

Lightweight & Space-Saving:
- Single-box girder design reduces deadweight by 20% vs. double-girder models.
- Ideal for low-clearance workshops (min. headroom: 8m).
Energy Efficiency:
- ≤78.3kW motor power (20-ton model) with optional VFD for 15% energy savings.
Durability:
- Main beam: Q345B steel with automatic welding + sandblasting + epoxy zinc-rich primer.
- Hoist: Grade 80 alloy chain (safety factor: 5:1).

Technical Specifications

Parameter	5-Ton Model	20-Ton Model
Span Range	5-30m	18-35m
Lifting Height	3-30m	10-11m (main hook)
Work Duty	A3-A5 (300-600 cycles/day)
Rail Type	43kg/m (QU80 recommended)
Ambient Temp.	-20°C to +50°C (customizable to -25°C)

8-ton electric single-girder gantry crane

2. Applications: Where Are These Cranes Used?

Dongqi’s 5-20 ton single-girder gantry cranes are engineered for heavy-duty material handling across industries. Below are key sectors and how our cranes optimize operations:

① Steel & Metal Processing

Typical Loads: Steel coils, billets, pipes, and scrap metal.
Dongqi Adaptations:
- L-Type Single Girder: Reduces sway when lifting long loads (e.g., 12m steel pipes).
- High-Temperature Kits: Insulated wiring + heat-resistant paint for foundries (up to 60°C ambient).
- Magnetic & Grab Options: For handling loose scrap or bundled rods.
Case Example:

A Vietnamese steel mill uses a 20-ton Dongqi crane with dual hooks (20t + 5t) to simultaneously lift molds and finished beams, cutting loading time by 40%.

② Ports & Logistics Terminals

Typical Loads: Containers, palletized goods, and heavy machinery.
Dongqi Adaptations:
- A5 Duty Cycle: Supports continuous loading/unloading (600+ cycles/day).
- Anti-Corrosion Packages: Zinc-plated trolleys + salt-spray-tested paint for coastal areas.
- Anti-Sway System: Reduces load swing during ship-to-shore transfers.
Case Example:

A Philippines port replaced outdated cranes with 10-ton Dongqi gantry cranes, achieving 30% faster container turnover due to the 47m/min travel speed.

③ Construction & Precast Concrete

Typical Loads: Precast slabs, columns, and heavy formwork.
Dongqi Adaptations:
- Outdoor Kits: IP54-rated motors + polyurethane bumpers for dust/rain resistance.
- High Precision: Variable frequency drives (VFD) enable ±5mm positioning accuracy for delicate placements.
- Modular Design: Quick assembly/disassembly for temporary job sites.
Case Example:

A Qatar high-rise project used four 16-ton Dongqi cranes with 30m spans to lift precast panels, completing the structure 2 weeks ahead of schedule.

④ Automotive & Machinery Manufacturing

Typical Loads: Engine blocks, presses, and assembly line components.
Dongqi Adaptations:
- Low-Noise Design: ≤75dB operation for worker comfort.
- Cleanroom Options: Stainless steel + oil-free brakes for precision workshops.
- Ergonomic Controls: Pendant + wireless remote for flexible operation.
Case Example:

A Chinese EV battery plant integrated 5-ton Dongqi cranes with automated guided vehicles (AGVs), streamlining battery module transfers.

⑤ Energy & Heavy Industries

Typical Loads: Wind turbine parts, transformers, and industrial boilers.
Dongqi Adaptations:
- Extra-Long Spans: Up to 35m with reinforced legs for oversized loads.
- Explosion-Proof: ATEX-certified motors for oil/gas facilities.
- Arctic Packages: -25°C hydraulic oil + heated cabins for Siberian plants.
Case Example:

A Russian power plant installed two 20-ton cranes with -30°C kits to handle turbine rotors year-round.

Key Takeaways for Buyers

✔ Match the crane to your industry’s demands (e.g., A5 duty for ports, explosion-proof for oil rigs).
✔ Leverage Dongqi’s customization to tackle environmental challenges (humidity, temperature, corrosion).
✔ Real-world proof: Our cranes are stress-tested in global projects—ask for case studies relevant to your sector.

3. 4 Advantages of Buying Directly from Dongqi Crane

Factory Price:

5-ton crane: From $3,130 (standard).
20-ton crane: From $7,100 (no trader markup).

Fast Delivery:

20 days for standard models; 35 days for OEM orders.

Quality Assurance:

100% load test before shipment (125% overload test optional).
12-month warranty + lifetime technical support.

Global Compliance:

CE, GOST, and FEM 1.001 certified.

4. OEM Customization: Tailor Your Crane

Dongqi offers end-to-end customization:

Structural Adaptations:
- Low-headroom / explosion-proof / corrosion-resistant coatings.
- Extended span (up to 35m with reinforced legs).
Electrical Upgrades:
- Siemens/ABB motors, 690V high-voltage option.
- Radio remote control + cabin dual-operation.
Environmental Resilience:
- Arctic packages (-25°C), tropical packages (humidity ≤85%).

Customization Workflow:

5. Buyer’s Guide: How to Select the Right Crane?

Step 1: Define Needs

Indoor/Outdoor? → Outdoor models need WV5800M wind-resistant encoders.
Lifting Frequency? → A5 duty for >600 cycles/day.

Step 2: Verify Supplier Credentials

Request:
- Type test reports (deflection ≤1/1000 span).
- Case studies (e.g., 20-ton crane for a Saudi warehouse).

Step 3: Avoid Hidden Costs

Confirm whether the quote includes:
- Power supply system (e.g., slip ring: +$1,200).
- CE certification fees (+$2,500 for EU markets).

Why Dongqi Crane?

✅ 20+ years of OEM/ODM experience.
✅ 1,200+ global clients (including Siemens, Hyundai partnerships).
✅ 24/7 post-sale support with local spare part stocks.

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