Single Girder Gantry Crane is equipped with a dual-speed electric hoist, widely used in workshops, storage, port, hydroelectric power station, and outdoor places. The lifting capacity of the gantry crane is 1 to 20 tons.

TypeMH
Lifting Capacity1 ton to 32 tons
Lifting Height6 m to 20 m
Span 8 m to 35m
Lifting Speed0.33 to 8 m/min
Trolley Traveling Speed20 m/min
Crane Traveling Speed20 m/min
Working DutyA3, A4

Single Girder Gantry Cranes can be equipped with two possible hoists.

CD&MD Wire Rope Hoist

When installed on a single girder gantry crane, the WeiHuaCrane CD&MD wire rope hoist can give you a lifting capacity of 32 tons.

CD wire rope hoists offer you a choice of speed.
MD wire rope hoists offer you two-speed options.
CD&MD wire rope hoists are easy to install and maintain, easy to operate, and cost-effective.

Single girder gantry crane using CD&MD wire rope hoist, model LD, also known as LD gantry crane.

Single-speed Electric Wire Rope Hoist

NR Wire Rope Hoist

When installed on a single girder gantry crane, the WeiHuaCrane NR wire rope hoist gives you a lifting capacity of 12.5 tons.

NR wire rope hoist adopts a C-shaped layout, which has higher space utilization and simple maintenance.

Single girder gantry crane using NR wire rope hoist, model HD, also known as HD gantry crane.

Electric Wire Rope Hoist

Name

Design


Design the details


white 1
Appearance

Working Class


Lifting Height


Hoist


white 1
Hoist Image

Lifting Speed


Trolley Travelling Speed


Crane Travelling Speed


Electrics


Maintenance


Noise


Total weight


MH Crane

  • Integrated design

motor, reducer, electrics Integrated, Hard to maintain



  • M3

  • 4.05 meter

CD&MD hoist is the supporting equipment of LD overhead crane.



  • 4 m/min (single speed)

  • 20 m/min (single speed)

  • 20m/min (single speed)

CHNT (origin from China)


Gearbox and wire rope need to add oil every year. Will need to stop production for maintenance.


  • Big noise in the warehouse

  • 7.14 tons

Most Popular

NMG Crane

  • Modular design

motor, reducer, electrics separated, easy to maintain



  • M5

  • 4.15 meter

NR hoists are the supporting equipment for HD overhead cranes.



  • 0.5 to 5 m/min (inverter control)

  • 2 to 20m/min (inverter control)

  • 2 to 20m/min (inverter control)

Schneider (France)


Maintenance-free, no need to add oil 3~5 years


  • Little noise

  • 6.5 tons

Introduction

The single-beam gantry crane is a girder composed of one girder, and each side is supported by a movable bracket at the end.
The hoist and the running trolley are most commonly suspended under the girder-which means they run on the rigid structure at the bottom of the bridge.

What can we offer you?

We can provide you with a common single-girder gantry crane with a lifting weight of 1ton to 20ton, a span of 8m to 35m, a lifting height of 6m to 20m, and a light working class (A3, A4).

Custom Made

If these cannot meet your requirements, we can also design and manufacture single-girder gantry cranes that meet your needs according to your needs.

The main purpose of Single Girder Electric Hoist Gantry Crane?

Single girder gantry crane is a kind of light and small material handling equipment that runs on rails.

Used with electric hoists such as single-speed wire rope hoist (CD1) and double-speed wire rope hoist (MD1).

Main places of use: material handling on different occasions such as mechanical production workshops, factories, warehouses, stockyards, etc.

Single girder gantry cranes cannot be used in special flammable, explosive, and corrosive environments (special material handling equipment).

If you are in a special industry, please write down your industry when you leave a message, and our engineers will customize a gantry crane that meets your industry standards.

Features

  1. The crane has simple and compact structure;
  2. It is easy to install and operate;
  3. It needs less and easy maintenance;
  4. It has light dead weight;
  5. It can be customized according to special work needs;
  6. The crane works reliably and efficiently without failure during lifting work;
  7. It can be used for many different work occasions, including indoor and outdoor occasions;
  8. The crane is supplied with very reasonable price.

WeiHuaCrane Advantages

  • More professional service: If you are not sure how to customize, our sales manager will help you choose the most suitable product for you;
  • Best for you: professional engineers customize products according to your user environment;
  • Better price: According to your user environment, etc., we will give you the most suitable product, save unnecessary functions, and help you save money;
  • Customized lifting height: According to your needs, the lifting height can be customized for you, which can be extended, reduced, etc., which is most suitable for you;
  • Customized function: wireless remote control can be installed, which is more convenient to use;
  • Modify the power supply: you can modify the power supply (voltage, frequency, etc.) according to your environment;
  • On-site installation: Worried about installation errors, we can on-site installation and commissioning;
  • Guidance: We provide use videos and detailed maintenance manuals;
  • Replacement of vulnerable parts: more vulnerable parts are provided so that your crane can be replaced in the first time when it is worn out;
  • Parts are processed separately: after long-term use, if some parts are damaged, we will process these parts for you and send them to you;

Application Scenarios

Single Girder Electric Hoist Gantry Crane is mainly used for material handling in open areas such as docks, freight yards, warehouses, and construction sites.

Main Structure and Feature

Mainly consisted of steel gantry structure, lifting mechanism(electric hoist ), crane traveling mechanism, electric equipment, and other accessories. Normally when working outside, crane and electric traveling and lifting mechanism should equip with rainproof cover.

whole structure box type and trussed type

  1. Box type structure with a simple manufacturing process,easy transportation and install, the whole structure rigidity,but with a large dead weight.
  2. Trussed structure, light weight, strong wind resistance, but poor manufacturing processes,inconvenience transportation and installation .

Gantry Frame

Mainly composed of main girder, ground beam, landing legs, outrigger, ladders, platforms, driver’s room, etc.

Main girder

Main bearing structure, traveling rail of electric hoist

Material Q235B or Q345B ( similar as Fe37 or Fe52)

U-type groove, inclined plate, rib plate made by cold bending suppress steel plate weld solid web girder with I beam, or truss girder welded by steel plate group

Arched main beam according to request, the arch degree F should be (1/1000~1.4/1000) S, max. Arch degree be in the scope of middle span S/10

There are saddle seats jointed with legs in the two sides of span position, and there are square steel plates contacted with flange

Buffers at the girder end ensure trolley’s safe traveling along the main girder.

Ground beam

Ground beams support the main girder and load, and also contact the main girder and traveling mechanism, one of the main loading metal structures.

Box structure girder welded by U-type groove and steel plate group or only steel plates, with features of light structure, good rigidity, appearance, and welding technology

Buffers settled at the ends of the ground beam

Legs

Isosceles trapezoid or right or left trapezoid box pillar welded by steel plate. Wide flanges welded at the upside and narrow flanges at the downside of the pillar increase the rigidity and stability of the gantry frame

Two flexible legs designed for improving crane traveling effect when spanning ≥ 30m

Bolts contact two flanges to become an “A” structure, increasing the crane’s stability

Bolts contact steel plate flange between legs and ground beam, simple structure, easy to install, transport and store

Sollar

Steel tubes, steel angles bending, antiskid riffled plate on the platform, retaining plate settled at the bottom of the platform; guardrail height:1050mm, the distance of two-level cross bars is 350mm

The inclined angle of the ladder and the horizontal plant is 55°, 60°, or 65°

Cabin Room

generally adopted the closed type, top of the cabin can stand 2.5KN dead load at least.

The headroom height inside the cabin ≥ 1.8m.

Electric Hoist

The electric hoist adopts a single-speed wire rope hoist or a double-speed wire rope hoist.

Crane Traveling Mechanism

Drive separately, composed of traveling motor, traveling reducer, wheel group, etc.

A Structure Mode

Motor

ZDY series motor with brake inside used for crane traveling, reliable brake.

Reducer

LDAC or LDHC type vertical trinity reducer, open gear drive, small width, without coupling.

Wheel

LDA type wheels, double wheel edges, efficiently avoid failures

Baffles at the end of ground beam contacted by bolts, easy to dismantle, install and maintain

Rail Sweeper

The rail sweeper sweep the barriers on the rail to ensure the safe travel

Rail Clamp

Rail clamp installed outdoor avoid crane moving due to force;

The switch on the clamp avoid the damage due to driving crane when clamped

B Structure Mode

( the others like A mode except for reducer)

Reducer

LDA or LDH type trinity reducer, open gear drive, small width, without coupling

C Structure Mode

Drive device simple structure, low noise, safe and reliable, easy to install and maintain.

Motor

YZR series wound rotor type motor for hoist and metallurgy used for crane traveling mechanism

Strong overload capacity, large output torque

Reducer

Separately drive, ZSC or ZSC(A) type vertical reducer

Saving space, a large patio

High transmission efficiency, smooth travel, low noise, easy to install and dismantle

Brake

YWZ type electric hydraulic block brake installed between traveling motor and reducer, smooth braking, high operating frequency, safe and reliable

Self-lubricating bearing in main swing hinge points, High transmission efficiency, long service life. Card plug-in brake rim or brake tile without asbestos, safe, easy to replace, and green initiative

Coupling

Couplings contact the brake, reducer, and motor together.

Wheel

Double edges cylindrical tread wheel, seldom offset and slip, 45-degree division structure, easy to dismantle, install and maintain

Buffer

JHQ series polyurethane buffer at the ends of the ground beam can transform impact kinetic energy to elastic potential energy quickly

Reliable hardness and impact elasticity, good storability

Both high and low-temperature resistance, insulation, ensure the crane’s safe travel

Rail sweeper (same as A)

Rail clamp (same as A)

Electrics

Pressured type load-lifting limiter, set alarm point, sensor settled on wire rope directly remaining original rope structure, control instrument could be installed together with the sensor, or installed in the electrical cabinet or other parts separately

Easy to install and debug, steady quality, intelligent, small size, etc.

Power supply mode

Crane feeder:

(1) safety slide wire

(2) soft cable

(3) cable drum

Trolley feeder:

(1) cable pulley

The slideway of soft cable and cable pulley could be wire rope slideway, I beam slideway or deformed steel slideway.

Wire and cable

Wire and cable with Copper, multistrand and insulating sheath used all over the crane

Multistrand single cable, whose cross-area of control wire≥1.5mm2 and 1.0mm2 multistrand multicore cable, cross-area of power line≥2.5mm

The cables set in trunkings or tubes with a thickness of 1.5mm~2mm

Protection devices at the parts of mechanical injury, chemical corrosion, or oil erosion

Control mode

Pendant: control the actions of all mechanisms by pressing the buttons

Remote control: control the actions of all mechanisms with industrial remote control

Cabin control: control the actions of all mechanisms with the buttons, master switches, cam controller, or linkage in the cabin

The crane could also have two sets of control devices, such as pendant + remote control or cabin + remote control. Two control modes could not be used together for safety.

Electric protection system

Short circuit protection

Automatic air-breaker switch in main power circuit as short circuit protection of the crane control circuit.

Voltage-loss protection

The circuit structure has Voltage-loss protect function, the start button must be repressed to restart the crane when power restoration after breaking in case of the crane automatic operating.

Emergency power switch

Rotating reset type emergency power switch like a red mushroom used for switching off power quickly in emergency condition

Emergency power switch set inconvenient place

Overload limiter

Overload limiter will send a hint alarm signal when the load reach 90% rated capacity

The power for lifting will be cut together with a prohibitive alarm signal when reaching 110% rated capacity

The sensor is linked with the control box, moistureproof and anti-seismic, anti-interference.

Position limiter

Fire limiter in lifting mechanism as the switch to limit the lifting height, at the same time, protect the controller

Traveling limiter in crane traveling mechanism, composed of traveling limit switch on the crane and safety rule at the place get out of the crane travel, ensure the safe travel of the crane.

A wind-proof rail clamp is installed at one end of the ground beam when used outside. Limit switch on rail clamp interlocks with main power switch, that is to say, the crane could not start when it is locked on the rail by rail clamp.

Zero position and interlock protection

The cabin control crane has zero position and interlock protect function

Zero position protection prevent the motor automatic operating when restore power after power off, avoid accidents

The interlocking of the door and switches avoid accidents like people or objects fall down from the door when the crane starts suddenly as the door opens.

Three-phase fault & voltage fault protection

Comprehensive protection in-circuit system will cut off main power automatically when three-phase fault or voltage fault in case of damaging people and equipment.

Ground protection

Metacor of crane and metal shell, raceway, the low side of the transformer of electric equipment all have grounding. Total grounding resistance≤4Ω and the crane rails could be as a ground wire. Insulation resistance to ground≥1MΩ at normal temperature (it is a measure value of 500V megger at normal temperature).

Capacity Datasheet

CapacitySpanLifting heightLifting speedTrolley speedCrane speedWork dutyTrack type
S(m)mm/minm/minm/min
1 ton 8~356~208(0.8/8)20(30)20(30)A3~A4 P24
2 ton 8~356~208(0.8/8)20(30)20(30)A3~A4 P24
3 ton8~356~208(0.8/8)20(30)20(30)A3~A4P24
5 ton8~356~208(0.8/8)20(30)20(30)A3~A4P24 P30
10 ton8~356~207(0.7/7)20(30)20(30)A3~A4P30  P38
16 ton8~356~203.5(0.35/3.5)1820(30)A3~A4P38
20 ton8~356~203.3(0.33/3.3)1420(30)A3~A4P38  P43

Drop Us Message

In order to customize the design drawings and the latest price for you as soon as possible, please fill in as much useful information as possible in the Message.

After receiving your message, our engineers will first customize the Single Girder Gantry Crane(MH) and make design drawings for you according to your needs, and then the sales manager will provide you with the price and contact you. Please wait.

Of course, you can also send this information to our email: [email protected].

In order to provide you with prices and drawings quickly, please fill in the message as far as possible: ⭐Lifting capacity; ⭐Lifting height; ⭐Span(m);⭐Power supply: __v/__phase/__Hz, etc.; If you have any other information, such as 1️⃣. What materials will the crane lift? 2️⃣. Traveling length: m? Do you need us to provide the rail for you? 3️⃣. crane working condition or environment? 4️⃣. how long meters does your crane travel? 5️⃣. how many hours does it work per day?

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