China wholesaler 42000 Liter /45000 Liter / 50000 Liter 3 Axles 6 Compartment Carbon Steel/Stainless Steel/Aluminum Alloy Tanker/Fuel Tanker/ Oil Tank/Tanker Truck Semi Trailer with high quality

Product Description

42000 Liter /45000 Liter / 50000 Liter 3 Axles 6 Compartment Carbon Steel/Stainless Steel/Aluminum Alloy tanker/Fuel tanker/ Oil Tank/Tanker Truck Semi Trailer

We are factory sales.
The trailer model we show is Our standard product; meanwhile, all our trailers can be customized according to your unique request

New Aluminum alloy / stainless steel / carbon steel oil tanker/fuel tanker semi trailer

Outer size  (10600-12200)x2500x(3600-3780)mm  (Changeable)
Design Capacity (gross) 30000L-50000L
Tare weight (±3%) 7500-10000KG
Type Tri-axle semi-trailer
Weight distribution Front 16 000 kg, Rear 24 000 kg, Total 40 000 kg
Coupling height Unladen 1320 mm

Tank assembly 

 

Compartment 2-6 sets (choosable)
Front/Rear end plate  Material  aluminium alloy / stainless steel
Front/Rear end plate thickness 6mm
Tank body 
(with insulating layer)
Material  aluminium alloy / stainless steel
Thickness  5mm
Wave-proof plate thickness  4mm
Manhole cover  Diameter            500mm
Material  Aluminum Alloy 
Number  2-6pcs 
Discharging valve  Diameter  3 inch 
Material  Aluminum Alloy API valve 
Number  2-6 pcs 
     Bottom safety valve    Aluminum Alloy   4  inch 
Discharging pipe  Diameter  3 inch 
Type  Rubber hose,2pcs 
Cat walk       Standard 

CHASSIS
 

Axle  Brand  Fuwa   
   Type  13t 
   Number  3pcs 
Rim  Type  11.5-22.5/9.0-22.5
   Number  6/12 pcs 
Tire     Brand  Triangle brand 
   Type  385/65R22.5  /  12R22.5
   Number  6/12pcs 
Suspension  Mechaniacal suspension  / air suspension
Spring leaf  Leaf width  90mm
Leaf thickness 13mm
Layer/set  10 Layer 
King pin     Type  Bolts type 
Diameter  2   inch 
Brake system  Air tank  45L air tanks 
Brake chamber WABCO RE6 relay valve; T30/30+T30 Spring brake chamber
    ABS  Optional 
Landing gear  Brand  JOST 
Type  E100 2 speed 

Accessories 

 

Spare tire carrier             One 
Light             LED light 
Voltage             24v 
Receptacle  7 ways(7wire harness)and quick change type 
Tool box  One piece,1000x500x500mm
Paiting  Polyurethane paint&anti-rust primer&sand blasting 
Tools for trailer  Head wrech ;spare wheel crank ; 


Factory sales, we can according to your requirements for your production;

FAQ:

A. What are our advantages compared with other competitors?

√√ Competitive Price — We’re semi  factory. We have 20 years of production and design experience; All accessories are selected from high quality suppliers;.From numerous comparison and feedback from clients, our price is more competitive than other competitors.

√√ Quick Response–
Our team is consisted of a group of diligent and enterprising people, working 24/7 to respond client inquiries and questions all the time. Most problems can be solved within 12 hours.

√√ Fast delivery —
Normally it will take more than 25-45 days for other companies to produce the ordered trailers, We are our own factory, we can have a 15-20 days delivery of regular trailers for our clients.

B. Which payment terms can we accept?

Normally we can work on T/T term or L/C term.

√√ On T/T term, 30% down payment is required in advance, 70% balance shall be settled before delivery, or against the copy of original B/L for regular client.
√√ On L/C term, normally need 30% down payment by T/T, 70% by L/C at sight. a 100% irrevocable L/C without “soft clauses” can be accepted sometimes. Please seek the advice from the individual sales manager whom you work with.

C. How long will our price be valid?

√√ Price with long valid time —
We are a tender and friendly supplier, never greedy on windfall profit. Basically, our price remains stable through the year. We only adjust our price based on 2 situations:
The rate of USD:RMB varies significantly according to the international currency exchange rates.
Manufacturers/factories adjusted the trailer price, because of the increasing labor cost and raw material cost.

D. What logistics ways we can work for shipment?

We can ship all trailer by various transportation tools.

√√ For 90% of our shipment, we will go by sea, to all main continents such as South America, Middle East, Africa, Oceania etc, either by container or RoRo/Bulk Shipment.
√√ For neighborhood countries of China, such as Russia, Tajikistan, Kazakhstan,Mongolia etc, we can ship trucks by road or railway.
√√ For light spare parts in urgent demand, we can ship it by international courier service, such as DHL, TNT, UPS, or Fedex.

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CONTACT :
Doris Han — Exporting Manager 
 

 

An Overview of Worm Shafts and Gears

This article provides an overview of worm shafts and gears, including the type of toothing and deflection they experience. Other topics covered include the use of aluminum versus bronze worm shafts, calculating worm shaft deflection and lubrication. A thorough understanding of these issues will help you to design better gearboxes and other worm gear mechanisms. For further information, please visit the related websites. We also hope that you will find this article informative.
worm shaft

Double throat worm gears

The pitch diameter of a worm and the pitch of its worm wheel must be equal. The 2 types of worm gears have the same pitch diameter, but the difference lies in their axial and circular pitches. The pitch diameter is the distance between the worm’s teeth along its axis and the pitch diameter of the larger gear. Worms are made with left-handed or right-handed threads. The lead of the worm is the distance a point on the thread travels during 1 revolution of the worm gear. The backlash measurement should be made in a few different places on the gear wheel, as a large amount of backlash implies tooth spacing.
A double-throat worm gear is designed for high-load applications. It provides the tightest connection between worm and gear. It is crucial to mount a worm gear assembly correctly. The keyway design requires several points of contact, which block shaft rotation and help transfer torque to the gear. After determining the location of the keyway, a hole is drilled into the hub, which is then screwed into the gear.
The dual-threaded design of worm gears allows them to withstand heavy loads without slipping or tearing out of the worm. A double-throat worm gear provides the tightest connection between worm and gear, and is therefore ideal for hoisting applications. The self-locking nature of the worm gear is another advantage. If the worm gears are designed well, they are excellent for reducing speeds, as they are self-locking.
When choosing a worm, the number of threads that a worm has is critical. Thread starts determine the reduction ratio of a pair, so the higher the threads, the greater the ratio. The same is true for the worm helix angles, which can be one, two, or 3 threads long. This varies between a single thread and a double-throat worm gear, and it is crucial to consider the helix angle when selecting a worm.
Double-throat worm gears differ in their profile from the actual gear. Double-throat worm gears are especially useful in applications where noise is an issue. In addition to their low noise, worm gears can absorb shock loads. A double-throat worm gear is also a popular choice for many different types of applications. These gears are also commonly used for hoisting equipment. Its tooth profile is different from that of the actual gear.
worm shaft

Bronze or aluminum worm shafts

When selecting a worm, a few things should be kept in mind. The material of the shaft should be either bronze or aluminum. The worm itself is the primary component, but there are also addendum gears that are available. The total number of teeth on both the worm and the addendum gear should be greater than 40. The axial pitch of the worm needs to match the circular pitch of the larger gear.
The most common material used for worm gears is bronze because of its desirable mechanical properties. Bronze is a broad term referring to various copper alloys, including copper-nickel and copper-aluminum. Bronze is most commonly created by alloying copper with tin and aluminum. In some cases, this combination creates brass, which is a similar metal to bronze. The latter is less expensive and suitable for light loads.
There are many benefits to bronze worm gears. They are strong and durable, and they offer excellent wear-resistance. In contrast to steel worms, bronze worm gears are quieter than their counterparts. They also require no lubrication and are corrosion-resistant. Bronze worms are popular with small, light-weight machines, as they are easy to maintain. You can read more about worm gears in CZPT’s CZPT.
Although bronze or aluminum worm shafts are the most common, both materials are equally suitable for a variety of applications. A bronze shaft is often called bronze but may actually be brass. Historically, worm gears were made of SAE 65 gear bronze. However, newer materials have been introduced. SAE 65 gear bronze (UNS C90700) remains the preferred material. For high-volume applications, the material savings can be considerable.
Both types of worms are essentially the same in size and shape, but the lead on the left and right tooth surfaces can vary. This allows for precise adjustment of the backlash on a worm without changing the center distance between the worm gear. The different sizes of worms also make them easier to manufacture and maintain. But if you want an especially small worm for an industrial application, you should consider bronze or aluminum.

Calculation of worm shaft deflection

The centre-line distance of a worm gear and the number of worm teeth play a crucial role in the deflection of the rotor. These parameters should be entered into the tool in the same units as the main calculation. The selected variant is then transferred to the main calculation. The deflection of the worm gear can be calculated from the angle at which the worm teeth shrink. The following calculation is helpful for designing a worm gear.
Worm gears are widely used in industrial applications due to their high transmittable torques and large gear ratios. Their hard/soft material combination makes them ideally suited for a wide range of applications. The worm shaft is typically made of case-hardened steel, and the worm wheel is fabricated from a copper-tin-bronze alloy. In most cases, the wheel is the area of contact with the gear. Worm gears also have a low deflection, as high shaft deflection can affect the transmission accuracy and increase wear.
Another method for determining worm shaft deflection is to use the tooth-dependent bending stiffness of a worm gear’s toothing. By calculating the stiffness of the individual sections of a worm shaft, the stiffness of the entire worm can be determined. The approximate tooth area is shown in figure 5.
Another way to calculate worm shaft deflection is by using the FEM method. The simulation tool uses an analytical model of the worm gear shaft to determine the deflection of the worm. It is based on a two-dimensional model, which is more suitable for simulation. Then, you need to input the worm gear’s pitch angle and the toothing to calculate the maximum deflection.
worm shaft

Lubrication of worm shafts

In order to protect the gears, worm drives require lubricants that offer excellent anti-wear protection, high oxidation resistance, and low friction. While mineral oil lubricants are widely used, synthetic base oils have better performance characteristics and lower operating temperatures. The Arrhenius Rate Rule states that chemical reactions double every 10 degrees C. Synthetic lubricants are the best choice for these applications.
Synthetics and compounded mineral oils are the most popular lubricants for worm gears. These oils are formulated with mineral basestock and 4 to 6 percent synthetic fatty acid. Surface-active additives give compounded gear oils outstanding lubricity and prevent sliding wear. These oils are suited for high-speed applications, including worm gears. However, synthetic oil has the disadvantage of being incompatible with polycarbonate and some paints.
Synthetic lubricants are expensive, but they can increase worm gear efficiency and operating life. Synthetic lubricants typically fall into 2 categories: PAO synthetic oils and EP synthetic oils. The latter has a higher viscosity index and can be used at a range of temperatures. Synthetic lubricants often contain anti-wear additives and EP (anti-wear).
Worm gears are frequently mounted over or under the gearbox. The proper lubrication is essential to ensure the correct mounting and operation. Oftentimes, inadequate lubrication can cause the unit to fail sooner than expected. Because of this, a technician may not make a connection between the lack of lube and the failure of the unit. It is important to follow the manufacturer’s recommendations and use high-quality lubricant for your gearbox.
Worm drives reduce backlash by minimizing the play between gear teeth. Backlash can cause damage if unbalanced forces are introduced. Worm drives are lightweight and durable because they have minimal moving parts. In addition, worm drives are low-noise and vibration. In addition, their sliding motion scrapes away excess lubricant. The constant sliding action generates a high amount of heat, which is why superior lubrication is critical.
Oils with a high film strength and excellent adhesion are ideal for lubrication of worm gears. Some of these oils contain sulfur, which can etch a bronze gear. In order to avoid this, it is imperative to use a lubricant that has high film strength and prevents asperities from welding. The ideal lubricant for worm gears is 1 that provides excellent film strength and does not contain sulfur.

China wholesaler 42000 Liter /45000 Liter / 50000 Liter 3 Axles 6 Compartment Carbon Steel/Stainless Steel/Aluminum Alloy Tanker/Fuel Tanker/ Oil Tank/Tanker Truck Semi Trailer   with high qualityChina wholesaler 42000 Liter /45000 Liter / 50000 Liter 3 Axles 6 Compartment Carbon Steel/Stainless Steel/Aluminum Alloy Tanker/Fuel Tanker/ Oil Tank/Tanker Truck Semi Trailer   with high quality