2021年7月29日星期四

Low speed electric winch

 JM series low speed electric winch is lifting equipment with following features: safety, convenient operation, reliable, durable, low in noise and so on. The winch is mainly composed by drum, motor, brake, reducer, wire rope, foundation, optional rope spooling device, etc.

The JM type electric winch is used widely in construction site, plant, mine, port and so on, it’s an necessary equipment for lifting, horizon or slop carrying heavy cargos, such as large concrete, steel structure, mechanical Equipment.

Main parameters of low speed electric winch

  • Electric winch model: JM1
  • Electric winch rated load: 10 KN
  • Electric winch rated speed: 15 m/min
  • Electric winch rope capacity; 100 m
  • Electric winch rope diameter: 9.3 mm
  • Various voltage and frequency (220v,380v,415v,440v).
  • Electric winch rope Capacity from 0.5T to 200T.
  • Stable slow speed: 0-20m/min .
  • Rope length: 10m to 2000m .
  • Used for horizontally pulling and vertically lifting.

Low speed electric winch technical data

 

low speed electric winch
Winch application of low speed electric winch

  • Road, bridge and building construction.
  • Used on cranes as the lifting mechanism.
  • Used in or outside different kinds of mines for pulling and lifting.
  • Used on boat or harbor for pulling and lifting.
  • Used in different kinds of workshops for pulling and lifting.
  • Some special usage for pulling or lifting.

Low speed electric winch for sale. The 15 m/min rated speed electric winch is used widely in construction site, plant, mine, port, etc. Contact us for on the low speed electric winch now.

Types of crane wheel

 According to different standards, crane wheels can be classified into different types, such as, single edge and double edge crane wheel, casting and forging crane wheel, etc. In the following, single edge and double edge crane wheel will be introduced in length crane for sale.

Single edge crane wheelDouble edge crane wheel
Crane Wheel ApplicationTravelling of bridge cranegantry craneTrolley traveling of the bridge and gantry crane
Flange height of crane wheel20mm-25mm25mm-30mm
Materials of crane wheelZG340-640 cast steel, ZG-50SiMn low alley steelZG340-640 cast steel, ZG-50SiMn low alley steel
Hardening depth of the wheel tread part≥20mm≥20mm
Hardness of the rolling surfaceZG340-640 cast steel with the hardness of 300-350HB, ZG-50SiMn with the hardness of420-480HBZG340-640 cast steel with the hardness of 300-350HB, ZG-50SiMn with the hardness of420-480HB
Pictures of crane wheels
Single edge crane wheel

Single edge crane wheel

Double edge crane wheel

Double edge crane wheel


Cantilever Jib Crane - An Energy-saving Lifting Solution

What are the structural characteristics of a cantilever crane?

cantilever jib crane for sale

  • The cantilever jib crane is composed of a column, a rotation arm, a cantilever drive device and an electric hoist.
  • The lower base of the column is fixed on the concrete foundation through anchor bolts, the motor drives the reducer to drive the equipment to reverse the cantilever, and the electric hoist performs reciprocating operation on the cantilever I-beam.
  • The cantilever of the crane is a hollow steel structure, with light weight, large span, large lifting weight, economical and durable.
  • The built-in walking mechanism adopts special engineering plastic walking wheels with rolling bearings.
  • The cantilever lifting device is matched with the highly reliable electric chain hoist, which is especially suitable for short-distance, frequent use and densely distributed lifting operations.
  • It is highly efficient, energy-saving, It has the features of labor saving, small floor space, easy operation and repair.
  • During operation, the load is lifted by pressing the button, and the tortuous and suspending movement of the beam is used to avoid objects in the manipulating manufacturing area to enlarge the working area.
  • Push and pull quietly by hand to reach any position in the work area.
  • Cantilever crane machine occupies a small area, are completely independent and are an ideal job crane, and are suitable for outdoor cargo yards and loading and unloading channels.

Double Girder Overhead Crane


Dongqi double girder overhead crane machine including product models such as QB,QD,QE,LH ect.lift loads up to 550 ton.Double girder electric overhead travelling crane are most frequently used when capacities over 10 tons.

There are various types of double overhead crane. According to the different materials need to be lift, the double bridge crane is equipped with distinct lifting tools, such as the hook, the grab bucket and the electromagnet. Aimed at the hazardous and poor working environment, you can choose the explosion-proof overhead crane to reduce the explode risk. And the foundry overhead crane to raise safety. Considering the way of suspend, we offer under hung bridge crane and top running overhead crane. If your factory space is limited, you can choose a under running bridge crane, on the contrary, a top running overhead crane may be the best choice.

Besides, Dongqi can be able to custom particular lifting machine to meet all your requirements.

Advantages of Double Girder Overhead Crane

Higher hook lift, since the hook can be pulled up between the main girders.

Extremely rigid girder construction and durable trolley design are well suited for heavy service applications.

Double Girder Overhead Crane

QD Overhead Crane With Hook
QD Overhead Crane With Hook
QZ Grab Bucket Overhead Crane
QZ Grab Bucket Overhead Crane
QE Double Trolley Overhead Crane
QE Double Trolley Overhead Crane
QY Insulation Overhead Crane
QY Insulation Overhead Crane
QC Electromagnetic Overhead Crane
QC Electromagnetic Overhead Crane
QB Explosion Proof Bridge Crane
QB Explosion Proof Bridge Crane
LH Double Girder Electric Hoist Crane
LH Double Girder Electric Hoist Crane
QDY Ladle Overhead Crane
QDY Ladle Overhead Crane
European Double Girder Overhead Crane
European Double Girder Overhead Crane
Electrolytic Aluminum Crane
Electrolytic Aluminum Crane

How does DQCRANES fulfill your lifting requirements?

Don’t worry about which type of crane is suitable for your application. DQCRANES team will tell you what will best suit your needs. No matter it is a large scale or a specialized crane or a fully fabricated bridge crane, a set of components or even a single spare part, each order placed at DQCRANES will receive a full set of engineering treatment. How does DQCRANESF fulfill your expectation? Generally, it goes to the following procedures:

On receive your case, your engineer who is designed to take full responsibility to your order will cooperate with your sales engineer and project manager to identify your needs and find out what is the most suitable for your application.

On the thorough understanding of your needs and technical discussion among DQCRANES engineers, your engineer will design and provide the CAD-generated clearance drawing to you for initial approval.

After receiving your response and feedback, revisions will be made if necessary.

Double check with you to ensure the correctness of dimensions and details.

Crane production. From designing to production, DQCRANES engineer will be there to conduct and supervise the whole process.

Crane installation. Your appointed engineer will always be right here waiting to provide service for you if needed.

Cranes Services. Professional advices for crane shipment and services on crane installation, operation, operator training, maintenance and inspection will be given on your requirements. In a word, lift time care will be given to your crane.

What affects gantry crane price?

 To determine the gantry crane price, it needs gantry crane design drawing, and then according to the gantry crane drawing and your specific requirements to account for the gantry crane price.Dongqi gantry crane company is widely used for material handling, and the price of gantry crane is affected by several factors. How to buy a gantry crane at pleasant price? Let’s check what affect the gantry crane price.

Factors affect gantry crane price

Gantry Crane price is determined by its tonnage, span, lifting height, crane operation, working hours, working conditions, and other parameters. If these parameters are not clear, while you want to know the gantry price for budget cost and get to know the gantry crane market price, please leave us message at the bottom of this page depending on your specific situation. The following details are the major factors that affect the price of gantry cranes:

The following are the major factors that may affect your gantry cranes price:

1.Gantry crane models.

Gantry cranes are designed with various types, such as, double girder gantry crane, single girder gantry crane, also called electric hoist gantry crane, box girder gantry crane, truss gantry crane, general use gantry crane, European or FEM gantry crane, logistic gantry cranes, hydropower gantry crane, railway gantry crane, port gantry cranes and others. The different models of gantry cranes affect the gantry crane price directly.

  •  Manual gantry crane for sale at cheap crane price 
  •  Semi gantry crane for sale at cost-effective gantry crane price
  •  Double girder gantry crane for sale at reasonable gantry crane price

2. Gantry crane lifting capacity.

The lifting capacity refers to the largest lifting ability of the gantry crane, or, the maximum load capacity, which is also a factory directly determines the size of main girder and supporting leg structures of the gantry crane

Single girder gantry crane

Factors affect gantry crane price

3. Gantry crane span

Gantry crane span is the trolley traversing traveling length. The span design (with or without crane cantilever), span length of gantry crane should be confirmed. . Gantry crane span and cantilever length will affects the cost of the gantry crane and gantry crane price.

Double girder gantry crane

Parameters affect gantry crane price

4. Gantry crane working duty.

Gantry crane working duty is determined by gantry crane working hours and working conditions, gantry crane working duty level is divided into A1 to A8. The higher the gantry crane working duty level is, the higher the gantry crane cost price is.

5. Gantry crane lifting height.

The lifting height of the gantry crane refers to the vertical distance from the lowest lifting point to the gantry crane hook lifting upper limit. The lifting height of gantry crane determines the gantry crane supporting legs and trolley hoisting cost.

trolley gantry crane with L shape leg

Specifications affect gantry crane price

6.Gantry crane control.

The gantry crane controls refers to the way of gantry crane operation, which includes ground control operation, remote control operation and driver’s cabin operation.

Gantry crane, driver's cabion, and remote control

All in all, if you want to get the exact gantry crane price, it needs to basically clear the mentioned technical parameters, types of gantry crane, lifting height, lifting capacity, crane span, and crane control, etc.

How to buy at good gantry crane price

When buyers purchase gantry cranes, first is overall consideration of the gantry crane use scope, working frequency, utilization, rated lifting capacity, traveling span, lifting height and other factors.

After got gantry crane purchase plan, the gantry crane manufacturer need to confirm the gantry crane basic technic info, such as what is the gantry crane lifting height? What’s the maximum lifting capacity? What’s the longest traveling distance? How is the gantry crane operation environment? And the gantry crane working frequency (working hours)?

Gantry Crane for Switzerland: 10 Ton Portable Gantry Crane for Sale to Switzerland

 Dongqi crane company simple portable gantry crane is manufactured for lifting equipment, loading and unloading of the warehouse, maintaining heavy-duty equipment and transporting materials, applicable for small and medium factory. The best advantage of portable mobile crane is omni-directional movability, fast to assembly, small volume, can be easily adjusted to provide different lifting heights. Capacity is 0.25t-10t, span is 12m. Brake bearing universal wheel can move on the ground, be used together with electric hoist, chain block, monorail trolley, realizing crane mechanization, which can reduce the human power,production costs, and improve work efficiency.

10 Ton Portable Gantry Crane for Sale to Switzerland

Portable gantry crane for sale - Dongqi Small gantry crane

Portable lifting cranes are mainly made up of steel structure, electric organ, electric lifting hoist, and movable tire. For its simple and compact structure, the portable crane can be installed and maintained easily. 

  • Rapid assembly and disassembly.
  • Easy to transport and lifting.
  • High safety and easy to operate.
  • Light dead weight, compact structure, small size and small wheel load.
  • Flexible, high-efficiency, and long service time.
  • With adjustable structure, the small crane can lift goods in different sizes.

10 Ton Portable Gantry Crane Technical Parameters: 

  • Capacity (t): 10
  • Span Length (m): 2-12
  • Lifting Height (m): 1-10
  • Lifting Speed (m/min): 7, 7/0.7
  • Trolley Speed (m/min): 2~20
  • Lifting Equipment: Manual/Electric wire rope or Chain hoist
  • Power: 380V, 50HZ, 3P or Customized

Protection Devices of Portable Gantry Cranes for Sale: 

  • Crane traveling limit switch.
  • Weight overload protection device.
  • Lifting height limit device.
  • Circuit self-test protection device, Running the travel limit.
  • Voltage lower protection function.
  • Phase sequence protection function.
  • Emergency stop function.
  • Anti-collision, sound and light alarm devices.
  • Equipped with rail clamp.
  • Lifting weight limitation, height limiting, rail clamping device.
  • Outdoor cranes are equipped with lifting mechanism, electrical control box and rainproof devices.
  • Speeding protection, zero pressure protection, the lightning protection.

Why Choose Dongqi Portable Gantry Crane? 

  • Dongqi Portable frame gantry can lift up to 0.5 to 15 tons and is a perfect supplement to existing overhead cranes.
  • Portable gantry cranes are perfect for applications where you need a portable and economical way to lift materials anywhere in your facility.
  • Chain fall hoists, single phase electric chain hoists are the most common lifting devices for this portable gantry crane.
  • Portable gantries are available in light weight aluminum that is easy to disassemble and move from one jobsite to another as well as the standard steel type.
  • Both steel and aluminum are available as either fixed height or adjustable.
  • The durable polyurethane casters to allow ease of movement around your facility. Including non skid and outdoor wheels.
  • These portable cranes provide a heavy duty end frame design with square tubing uprights, knee braces and channel base which provide a very stable base.

10 Ton Portable Gantry Crane for Sale

10 Ton Portable Gantry Crane Application:

Dongqi portable gantry crane is a regular crane widely used at open ground and warehouse loading and unloading materials, It has two controlling methods, namely ground controlling and room controlling. 

  • Engineering industry
  • Ports
  • Granite industry
  • Steel Yards
  • Cement Pipe industry
  • Open Yard
  • Storage places
  • Container Depots
  • Shipyards

2021年7月28日星期三

Double Girder EOT Cranes

 Double girder EOT crane for sale find their application in power plant, workshop duty, transformer industry, cable industry, process plants, steel plants, coal fields, cement plants, engineering industry to just name a few.

Heavy duty barrel winch type of double girder cranes are designed and manufactured to customer’s precise needs.

For standard workshop duty crane the hoisting unit is comprised of compact wire rope hoist unit. While in case of heavy duty or higher capacity cranes, the hoisting unit is made from fabricated and machined rope drum housing left hand and right hand grooves to achieve true vertical lift. The rope drum is connected to total enclosed helical gearbox through flexible drum coupling. The gearbox is driven by electric motor either sq. cage induction type or slip ring type. Fail safe hydraulically operated thrustor brake or DC brake is provided on input shaft of gearbox to prevent accidental lowering of load in the event of power failure.

For special steel mill ladle handling application, the wire rope arrangement can be supplied with four rope independent suspension to prevent falling of load in case of failure of one wire rope. The hoisting gearbox can be supplied with integral planetary arrangement and two hoisting motors for achieve hoisting motion at 50% of full speed in case of failure of one hoisting motor. Planetary gearbox can also be supplied for operating 4 rope grab bucket to achieve hoisting as well as grab opening/ closing operations.

Special features for hoisting arrangement include motorised hook rotation, two hook blocks suspended from hoist drum supporting lifting beam, special anti sway rope arrangement for rotating lifting beams, magnets suspended from hook block/ lifting beam, tong suspended from rope system, grab bucket suspended from wire rope system or hook type grab, hot metal handling crane with motorised hook rotation, fixed mast crane to prevent load sway during acceleration and deceleration.

In addition to Main Hoist (MH) an Auxiliary Hoist (AH) can also be provided on the same trolley. On customer’s request, two or three trolleys can be operated on the same pair of bridge girders for special application with a facility for load summation.

The cross travel machinery comprises of motor gearbox and brake unit coupled to wheel assemblies with live axles. The spherical roller bearings housed in L type of bearing housing are provided for heavy duty application.

The bridge girders are made of plate box construction of ample strength and rigidity. Full depth vertical diaphragms are provided inside the box for stability. Short diaphragms are provided in between full depth diaphragms to support the rail section that support the trolley. Horizontal diaphragms are provided as needed to prevent buckling of web plates.

For special applications wide box girder design is provided as per customer’s requirement. In this case the electrical panels are housed inside the box girder to protect the electrical and electronic components from metallic dust as well as heat. As an alternative to wide box girder design, a completely enclosed electrical house supported on crane platform can be provided.

Full length walkway platforms are provided along the LT drive side girders for heavy and extra heavy duty cranes. Platform/ Walkways are provided on all other cranes as per customer’s specifications.

Power is supplied to trolley through flexible festoon cable system. For lower capacity and light duty cranes, compact festoon cable system or drag chain system is used for trolley power supply. For higher capacity/ heavy duty cranes beam rider trolleys moving on heavy duty I beams supply power to machinery installed on the trolley.

The girders are supported at ends by rigid end carriages that house long travel wheels. The arrangement of end carriage is decided by application as well as number of long travel wheels that support the load. Crane capacity, runway rail size, duty classification of crane

Single girder crane catalogue

 

Single girder crane catalogue introduction

Single Girder Overhead Crane

1623219859-3265-Single-Girder-Crane-for-sale

  • Lifting Capacity: 3.2t~16t
  • Working Temperature: -25℃~40℃
  • Standards: DIN, FEM, ISO

LD type single girder eot crane

1623219860-1895-type-single-girder-eot-crane

  • Lifting Weight: 1T-20T
  • Span: 7.5m-28.5m
  • Working Environment Temperature: -20 ℃ ~ 40℃
  • Working Grade: A3-A4
  • Control: electric control

LDP type electric single girder crane

1623219859-6195--control-single-girder-crane

  • Working Environment Temperature: -20℃~+40℃
  • Rated Load: 3T~10T
  • Span: 7.5M~22.5M
  • Working Grade: A3, A4

LDZ type single girder eot crane

1623219859-3137-LDZ-single-girder-eot-crane

  • Lifting Capacity: 2~10T
  • Span: 4.5~28.5M
  • Working Environment Temperature: -20 c ~+40 c
  • Control: electric control

LX type single girder eot suspension crane

1623219860-6255-ngle-girder-suspension-crane

  • Lifting Weight: 0.5T-10 T
  • Span: 3-16m
  • Working Environment Temperature: -20℃~+40℃
  • Control: electric control

SL Manual single girder bridge crane

1623219861-8033-L-Manual-single-girder-crane

  • Weight: 0.5T~10T
  • Working Environment Temperature: above -20℃
  • Control: manual control

Single girder crane catalogue pdf

If you need a custom crane or need a complete crane solution or if you have any other questions, you can submit a message to us. We usually get in touch with you within 24 hours.

Single girder crane is a kind of small overhead lifting equipment that typically comes in single girder construction.

It can be designed for general lifting purposes as well as special lifting applications, such as to lift and move a heavy load in workshops, warehouses, workstations, steel mills and chemical plants.

ld_single-girder_overhead_crane_specification pdf

Single Girder Crane Classifications

At American Crane, we offer our customers four unique single girder crane designs to meet their specific needs.

Class A – Infrequent or Standby 

These cranes provide precise handling at slow speeds and are suitable for various applications, including turbine rooms, public utilities, motor rooms, powerhouses, and transformer stations.

Class B – Light Service

Class B cranes are perfect for light service applications that have low-speed requirements. These cranes can typically handle two to five lifts an hour and are ideal for applications such as light assembly operations, repair shops, light warehousing, and service buildings.

Class C – Moderate Service

Class C cranes are built for applications with moderate service requirements such as paper mills, machine shops, and other applications. They can make 5 to 10 lifts per hour, with loads that average 50% of the cranes rated capacity.

Class D – Heavy Service

Class D Heavy Service cranes are used in applications such as foundries, heavy machine shops, steel warehouses, fabricating plants, lumber mills, and container yards. They are ideal for heavy-duty production where a standard duty bucket and magnet operation is required. These cranes can perform 10 to 20 lifts per hour, averaging 15 feet, at less than 65% of the cranes rated capacity.