China 21″ Self-Propelled 3 Speed Transmission Gear Box planetary gearbox

Product Description

Product Description

21″ selfp-propelled 3 Speed Transmission Equipment Box

Solution Parameters

Dalong garden mower:  durable, secure procedure, lovely and comfortable, environmental protection, with superb competitive cost.Low cost cost gasoline lawnmower BS motor for yard grass cutting 

Mower Grass Reducing Machine Elements Checklist

a.Lawn Mower Gear box 

1.Rod substance: forty chromium (Chromium is utilised to make stainless steel, vehicle areas, resources, tapes and video clip tapes, and many others. Chrome plated on metal can stop rust, also named can domi, robust and lovely . Chromium can be utilised to make stainless steel. The shade of pink and emerald also comes from chromium.)
2.Situation: ADC12 aluminum alloy
3.Equipment: steel base powder, metallurgical die casting
four.Oil seal gasket rubber
five.3 Speed Transmission


What materials for CZPT mower deck?

b.:Garden mower chassis

The sturdy aluminum die-forged chassis Mower with powder coated, aerodynamic design and style provide ideal air- movement for uninterrupted operating circumstances, and seamless circulation of cutting.


How several types for CZPT mower blades?

c.Lawn mower blades
Mowing height 480mm.533mm, suitable for various terrains, best vortex aluminum alloy cutter head include, the use of aerodynamic basic principle, so that the ability to boost grass, much more appropriate for the requirements of users.

Aerodynamic style skilled blade,it  is productive and the blade is powerful and durable 


Honda Engine +BS Motor for different customer choice

d.Lawn mower motor

Honda Lawnmower Motor-GXV160 vertical shaft common function gasoline engine
The Honda fuel motor lends itself to a pleasant shock by delivering exceptional efficiency, and functions at the exact same time.

Pneumatic cylinder. Air filter.And gasoline tank design improvements.Make it light in weight.Beautiful features. More hassle-free to carry power tools.

Purchasing power and torque by way of a set OHV valve. Tremendously decreasing gasoline usage.

A decompression system and a transistor physique ignition system are used to purchase a bus.Make startup more convenient and reliable.

The design of a muffler and air filter reduces sounds air pollution to the atmosphere.

B&S Mower Engine Design :750EX Collection DOV

B & S E series little vertical shaft engines are reputable and effortless to use. Hundreds of thousands of wander-guiding mowers all around the planet each year decide on E-Collection engines. E-Sequence engines can provide users with exceptional price.


1.easy to start off

It is practical and avoid to misoperation.

two.Forged iron cylinder liner

Anti-put on and extend motor existence.

3.DOV lever-sort overhead valve practice

Diminished engine vibration and sounds for a lot more cozy procedure

4.Big ability air filter

Enhance air filtration performance and reduce motor wear.

5.Just Check and Insert Oil adjust-totally free technologies

Built-in large-sealing air filter, lower engine operating temperature and high-precision elements producing, the engine does not need to change the oil in the course of its lifestyle. This engineering helps make routine maintenance of Exi collection engines extremely easy, topping up the oil – examining often – adding as necessary.


Packaging & Shipping

Gasoline lawnmower delivery and packing 
two.By air cargo
three.By China-Europe freight practice
4.By sea container cargo
five.Port:FOB ZheJiang or CIF phrases.
six.Shipment day in ten-15days for mass manufacturing .


Business Profile

 ZheJiang CZPT Grandwell Technology Co.,Ltd

Dalong organization was established in 1996. Professional determination to R & D, generation, and product sales of backyard garden machinery goods. It has a R&D and creation in Jin ma Industrial Zone, Xihu (West Lake) Dis., ZheJiang China, with a sturdy creation technology R&D group. The lawn mowers and upkeep equipment made by the organization are effectively acquired and trusted all more than the planet.
In 1996, ZheJiang CZPT organization was selected by HONDA as the first common agent of “HONDA” backyard garden machinery goods in China. The goods are Lawn vehicle, lawn device, four-stroke irrigation device, drinking water pump and so on. It is a ideal-offering merchandise in domestic backyard garden industry.
ZheJiang CZPT labored with a quantity of worldwide renowned garden equipment company cooperation.

This kind of as:
French ETESIA  multi-functional large effectiveness garden mower, in ZheJiang   , HangZhouang, ZheJiang , and other spots to use a good welcome.
France COUP’ECO High hedge trimmer, freeway hedge trimmer, forest fireplace emergency rescue equipment, et
Sweden BAHCO (the original Sandvik) pruning observed, pruning scissors, large observed, high shear, and many others.
German STIHL chopping irrigation device, chainsaw, hedge trimmer large branch chainsaw, hair dryer, and so forth.
Swedenh (previously Japan Komatsu) hedge trimmers, mowers, chainsaws, supporters, etc.
VHangZhouELE Department and tree shredder, Belgium
Italy CO branch grinder
Belgium ELIET car leaf suction equipment, hand drive leaf suction machine

The solution attributes of high effectiveness, toughness, fuel preserving, environmental security, risk-free procedure, and so on. ZheJiang Dalong, usually adhere to the sensible price tag sales, satisfactory supply of spare areas, welcome you to visit our organization, the quality of the merchandise offered, cost and soon after-product sales provider for a complete comparison, sensible purchase. You need to not only pay attention to price tag, but also to solution good quality and soon after-product sales provider. ZheJiang CZPT will turn into your trusted associate.

Our Advantages

 ENTRY Level Higher Quality Garden CUTTER
  1. Much more than 10 yearsexperience of backyard garden machinery 
  2. Factorydirect price 
  3. Have 2or 3new model each year 
  4. Great quality,Fullrefund in situation of negative top quality
  5. Smallorders welcome
  6. Swift shipping and delivery within 10days
  7. VIP buyer a single-end services
  8. Engineers provide technical providers


Landscape electrical lawn mower functionality characteristics

1.Aluminum alloy die-casting chassis, tough, light and rust-proof

The chassis is produced of higher-high quality aluminum alloy and big-tonnage die-casting device, with substantial density, high energy, and anti-corrosion it completely meets for the layout requirements for wall thickness and strength, it is conducive to ensuring personalized basic safety, and provides a reliable foundation for the gasoline motor and prolongs the working  life of the gasoline engine. The entrance axle is mounted with a pressure plate composition, which is much more trustworthy.

2.Exceptional performance motor
The authentic engine, excell t performance with great starting up , large energy, lower failure fee.solid  chassis configuration, far more prolong the provider life of the engine.

3.Lawn mower Grass box
Dalong 196 configuration grass box, lovely visual appeal, sleek grass assortment, robust dust defense, practical use.

4.Xihu (West Lake) Dis.nized style, excellent assortment of elements
a few-next cease device purpose, protected to use the stop manage is flat, it is comfortable when press ahead. sound good quality for the grass reducing top adjustment . Reputable positioning. The stamping elements are all made of higher-top quality cold-rolled steel plates, with substantial power, good top quality .clean and beautiful surface area.

5.Upper handle comfortable
a few-2nd quit perform, manage is flat, comfortable to press and keep, the pull drive is transferred by the spring,  movement is soft, and the operation is secure.

six.Influence clamp cap
The compact reed clamp cap is manufactured by 6 sets of mildew



Q1: Are you a factory or a trading company

A1: We are a factory and investing organization. We are 1 of the bigger backyard machinery manufacturers in domestic ,We have been in this business for more than fifteen many years.

Q2: How does your manufacturing unit do in conditions of quality management?

A2: Quality handle is carried out at every single workstation in creation. Our items are a hundred% internally inspected before cargo.

Q3: What is your guarantee for the product?

A3: We offer a a single-year guarantee.

This autumn: How can I get samples?

A4: If you can not buy our merchandise in your nearby area, we will ship you samples. You will be billed the sample price tag additionally all connected transport fees. The cost of specific shipping and delivery relies upon on the quantity of samples

Q5: How about MOQ?

A5:For sample we can offer 1 or 2 pcs for quality checking at initial .

Q6: Do you accept OEM/ODM company?

A6: Of course, we can make goods in accordance to client demands, like Symbol, coloration, layout, and so on.

Q7:How numerous times for sample ordering ?

A7:Sampling time about 5-7days,for mass order about fifteen-20days for cargo completely ready.

Type: Rotary Mowers
Moving Way: Rear Push
Cutter Type: Rotary Lawn Mower
Applicable Area: 1000-5000m²
Feature: 4-Stroke, Height Adjustable Handles, Single Cylinder, Cordless, Grass Box, Aluminum Chassis, Folding Handle, Anti-Slip
Certification: CE


US$ 90/Piece
1 Piece(Min.Order)

Request Sample




21" selfp-propelled 3 Speed Transmission Gear Box
Type: Rotary Mowers
Moving Way: Rear Push
Cutter Type: Rotary Lawn Mower
Applicable Area: 1000-5000m²
Feature: 4-Stroke, Height Adjustable Handles, Single Cylinder, Cordless, Grass Box, Aluminum Chassis, Folding Handle, Anti-Slip
Certification: CE


US$ 90/Piece
1 Piece(Min.Order)

Request Sample




21" selfp-propelled 3 Speed Transmission Gear Box

The Parts of a Gearbox

There are many parts of a Gearbox, and this article will help you understand its functions and components. Learn about its maintenance and proper care, and you’ll be on your way to repairing your car. The complexity of a Gearbox also makes it easy to make mistakes. Learn about its functions and components so that you’ll be able to make the best choices possible. Read on to learn more. Then, get your car ready for winter!


Gearboxes are fully integrated mechanical components that consist of a series of gears. They also contain shafts, bearings, and a flange to mount a motor. The terms gearhead and gearbox are not often used interchangeably in the motion industry, but they are often synonymous. Gearheads are open gearing assemblies that are installed in a machine frame. Some newer designs, such as battery-powered mobile units, require tighter integration.
The power losses in a gearbox can be divided into no-load and load-dependent losses. The no-load losses originate in the gear pair and the bearings and are proportional to the ratio of shaft speed and torque. The latter is a function of the coefficient of friction and speed. The no-load losses are the most serious, since they represent the largest proportion of the total loss. This is because they increase with speed.
Temperature measurement is another important preventive maintenance practice. The heat generated by the gearbox can damage components. High-temperature oil degrades quickly at high temperatures, which is why the sump oil temperature should be monitored periodically. The maximum temperature for R&O mineral oils is 93degC. However, if the sump oil temperature is more than 200degF, it can cause seal damage, gear and bearing wear, and premature failure of the gearbox.
Regardless of its size, the gearbox is a crucial part of a car’s drivetrain. Whether the car is a sports car, a luxury car, or a farm tractor, the gearbox is an essential component of the vehicle. There are two main types of gearbox: standard and precision. Each has its own advantages and disadvantages. The most important consideration when selecting a gearbox is the torque output.
The main shaft and the clutch shaft are the two major components of a gearbox. The main shaft runs at engine speed and the countershaft may be at a lower speed. In addition to the main shaft, the clutch shaft has a bearing. The gear ratio determines the amount of torque that can be transferred between the countershaft and the main shaft. The drive shaft also has another name: the propeller shaft.
The gears, shafts, and hub/shaft connection are designed according to endurance design standards. Depending on the application, each component must be able to withstand the normal stresses that the system will experience. Oftentimes, the minimum speed range is ten to twenty m/s. However, this range can differ between different transmissions. Generally, the gears and shafts in a gearbox should have an endurance limit that is less than that limit.
The bearings in a gearbox are considered wear parts. While they should be replaced when they wear down, they can be kept in service much longer than their intended L10 life. Using predictive maintenance, manufacturers can determine when to replace the bearing before it damages the gears and other components. For a gearbox to function properly, it must have all the components listed above. And the clutch, which enables the transmission of torque, is considered the most important component.


A gearbox is a fully integrated mechanical component that consists of mating gears. It is enclosed in a housing that houses the shafts, bearings, and flange for motor mounting. The purpose of a gearbox is to increase torque and change the speed of an engine by connecting the two rotating shafts together. A gearbox is generally made up of multiple gears that are linked together using couplings, belts, chains, or hollow shaft connections. When power and torque are held constant, speed and torque are inversely proportional. The speed of a gearbox is determined by the ratio of the gears that are engaged to transmit power.
The gear ratios in a gearbox are the number of steps a motor can take to convert torque into horsepower. The amount of torque required at the wheels depends on the operating conditions. A vehicle needs more torque than its peak torque when it is moving from a standstill. Therefore, the first gear ratio is used to increase torque and move the vehicle forward. To move up a gradient, more torque is required. To maintain momentum, the intermediate gear ratio is used.
As metal-to-metal contact is a common cause of gearbox failure, it is essential to monitor the condition of these components closely. The main focus of the proactive series of tests is abnormal wear and contamination, while the preventative tests focus on oil condition and additive depletion. The AN and ferrous density tests are exceptions to this rule, but they are used more for detecting abnormal additive depletion. In addition, lubrication is critical to the efficiency of gearboxes.


Daily maintenance is a critical aspect of the life cycle of a gearbox. During maintenance, you must inspect all gearbox connection parts. Any loose or damaged connection part should be tightened immediately. Oil can be tested using an infrared thermometer and particle counters, spectrometric analysis, or ferrography. You should check for excessive wear and tear, cracks, and oil leaks. If any of these components fail, you should replace them as soon as possible.
Proper analysis of failure patterns is a necessary part of any preventative maintenance program. This analysis will help identify the root cause of gearbox failures, as well as plan for future preventative maintenance. By properly planning preventative maintenance, you can avoid the expense and inconvenience of repairing or replacing a gearbox prematurely. You can even outsource gearbox maintenance to a company whose experts are knowledgeable in this field. The results of the analysis will help you create a more effective preventative maintenance program.
It is important to check the condition of the gearbox oil periodically. The oil should be changed according to its temperature and the hours of operation. The temperature is a significant determinant of the frequency of oil changes. Higher temperatures require more frequent changes, and the level of protection from moisture and water reduces by 75%. At elevated temperatures, the oil’s molecular structure breaks down more quickly, inhibiting the formation of a protective film.
Fortunately, the gear industry has developed innovative technologies and services that can help plant operators reduce their downtime and ensure optimal performance from their industrial gears. Here are 10 steps to ensure that your gearbox continues to serve its purpose. When you are preparing for maintenance, always keep in mind the following tips:
Regular vibration analysis is a vital part of gearbox maintenance. Increased vibration signals impending problems. Visually inspect the internal gears for signs of spiraling and pitting. You can use engineers’ blue to check the contact pattern of gear teeth. If there is a misalignment, bearings or housings are worn and need replacement. Also make sure the breathers remain clean. In dirty applications, this is more difficult to do.
Proper lubrication is another key factor in the life of gearboxes. Proper lubrication prevents failure. The oil must be free of foreign materials and have the proper amount of flow. Proper lubricant selection depends on the type of gear, reduction ratio, and input power. In addition to oil level, the lubricant must be regulated for the size and shape of gears. If not, the lubricant should be changed.
Lack of proper lubrication reduces the strength of other gears. Improper maintenance reduces the life of the transmission. Whether the transmission is overloaded or undersized, excessive vibration can damage the gear. If it is not properly lubricated, it can be damaged beyond repair. Then, the need for replacement gears may arise. However, it is not a time to waste a lot of money and time on repairs.

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editor by czh 2023-01-24