Tag Archives: hydraulic grab

China OEM Widely Used Hydraulic Clamshell Grab for Marine Crane near me factory

Product Description


Widely Used Hydraulic Clamshell Grab For Marine Crane

 

Discription:

Used for building the base of the foundation pit digging mining, pit mining, gravel and clay, sand, coal loading. Particularly applicable to ditch or restricted space on one side of the excavation and loading. Apply to port ship, train and car.

With double oil cylinders drive and high strength steel production. With big closing force, excellent mining properties,and high work efficiency. Hydraulic turning points according to the customers’ demand, Without hydraulic rotary excavator grab use the oil cylinder or standby line, don’t need to add other hydraulic valve block and line. Rotary hydraulic excavator grab need add another set of hydraulic valve and pipeline to control, oil cylinder makes the piston protective device.

Advantage Hydraulic Grab:
1. The electro hydraulic grab suitable with single hook crane.

2. Electro Hydraulic grab is powerful and efficient in load and discharge different bulk cargo

3. Compare with remote control grab, can handle material quicker

4. Electro Hydraulic clamshell grab can be open and close at any time. More convince to operation it

5. The wire drum protects electric Hydraulic clamshell grab is in from side to side when working, especially when cleaning the vessel

Techinical specifiction:

Type Weihgt Volume Density SWL Size 
QSEH-1 (Kg) m3 (t)
          A B C D E
QSEH400-1 560 0.4  0.4-1.2 5 1260 810 1100 1350 950
QSEH500-1 650 0.5  0.4-1.2 6.25 1350 870 1200 1460 1571
QSEH630-1 770 0.63  0.4-1.2 7.6 1450 930 1290 1570 1100
QSEH800-1 920 0.8  0.4-1.2 9.4 1510 960 1340 1635 1250
QSEH1000-1 1070 1.0  0.4-1.2 11.34 1620 1030 1880 1760 1360
QSEH1250-1 1240 1.25  0.4-1.2 13.7 1740 1100 1450 1895 1450
QSEH1600-1 1500 1.6  0.4-1.2 17.1 1890 1560 1690 2060 1580
QSEH2000-1 1740 2.0  0.4-1.2 20.7 2030 1290 1820 2220 1700
QSEH2500-1 2571 2.5  0.4-1.2 25.1 2180 1385 1960 2390 1830
QSEH3000-1 2170 3.0  0.4-1.2 28.8 2315 1470 2085 2540 1940
QSEH3500-1 2260 3.5  0.4-1.2 32.3 2430 1540 2195 2670 2040
QSEH4200-1 2380 4.2 0.4-1.2 37.1 2580 1635 2330 2840 2170

Drawing:

Photos:

Packing:

About us
QSHI supplies different kinds of products. High quality and favorable price.
We’re pleased to get your Inquiry and we will feedback ASAP.
We stick to the principle “Quality First, Service First, Continuous Improvement and Customer Satisfaction” and aim at “Zero Defect Zero Complaint”.
To perfect our service, we provide products with good quality at reasonable price.
Our Service
Being a good adviser and assistant of client, we can help them to get rich and generous returns on their investment.
1.Pre-sale services: 
a: Design customized project for clients.
b: Design and manufacture products according to clients special requirement.
c: Train technical personnel for clients.
2.Services during the sale:
a: Help clients to find reasonable freight forwarders ahead of delivery.
b: Help clients to draw solving plans.
3.After-sale services:
a: Assist clients to prepare for the construction scheme.
b: Install and debug equipment.
c: Train the first-line operators.
d: Examine equipment.
e: Take initiative to eliminate the troubles immediately.
f: Provide technical exchanging.
FAQ
 ORDER INTRODUCTION:
Pls kindly send us your detailed specifications as follow if you are interested in our grabs.
1 What’s the lifting material?
2 What’s the cubage of the grab?
3 What’s the SWL of your crane?
We will offer you the best suitable grab with best price and quality. These specifications above can make it clear about your requirements.
Thanks very much for your kindly cooperation!

 

Guide to Drive Shafts and U-Joints

If you’re concerned about the performance of your car’s driveshaft, you’re not alone. Many car owners are unaware of the warning signs of a failed driveshaft, but knowing what to look for can help you avoid costly repairs. Here is a brief guide on drive shafts, U-joints and maintenance intervals. Listed below are key points to consider before replacing a vehicle driveshaft.
air-compressor

Symptoms of Driveshaft Failure

Identifying a faulty driveshaft is easy if you’ve ever heard a strange noise from under your car. These sounds are caused by worn U-joints and bearings supporting the drive shaft. When they fail, the drive shafts stop rotating properly, creating a clanking or squeaking sound. When this happens, you may hear noise from the side of the steering wheel or floor.
In addition to noise, a faulty driveshaft can cause your car to swerve in tight corners. It can also lead to suspended bindings that limit overall control. Therefore, you should have these symptoms checked by a mechanic as soon as you notice them. If you notice any of the symptoms above, your next step should be to tow your vehicle to a mechanic. To avoid extra trouble, make sure you’ve taken precautions by checking your car’s oil level.
In addition to these symptoms, you should also look for any noise from the drive shaft. The first thing to look for is the squeak. This was caused by severe damage to the U-joint attached to the drive shaft. In addition to noise, you should also look for rust on the bearing cap seals. In extreme cases, your car can even shudder when accelerating.
Vibration while driving can be an early warning sign of a driveshaft failure. Vibration can be due to worn bushings, stuck sliding yokes, or even springs or bent yokes. Excessive torque can be caused by a worn center bearing or a damaged U-joint. The vehicle may make unusual noises in the chassis system.
If you notice these signs, it’s time to take your car to a mechanic. You should check regularly, especially heavy vehicles. If you’re not sure what’s causing the noise, check your car’s transmission, engine, and rear differential. If you suspect that a driveshaft needs to be replaced, a certified mechanic can replace the driveshaft in your car.
air-compressor

Drive shaft type

Driveshafts are used in many different types of vehicles. These include four-wheel drive, front-engine rear-wheel drive, motorcycles and boats. Each type of drive shaft has its own purpose. Below is an overview of the 3 most common types of drive shafts:
The driveshaft is a circular, elongated shaft that transmits torque from the engine to the wheels. Drive shafts often contain many joints to compensate for changes in length or angle. Some drive shafts also include connecting shafts and internal constant velocity joints. Some also include torsional dampers, spline joints, and even prismatic joints. The most important thing about the driveshaft is that it plays a vital role in transmitting torque from the engine to the wheels.
The drive shaft needs to be both light and strong to move torque. While steel is the most commonly used material for automotive driveshafts, other materials such as aluminum, composites, and carbon fiber are also commonly used. It all depends on the purpose and size of the vehicle. Precision Manufacturing is a good source for OEM products and OEM driveshafts. So when you’re looking for a new driveshaft, keep these factors in mind when buying.
Cardan joints are another common drive shaft. A universal joint, also known as a U-joint, is a flexible coupling that allows 1 shaft to drive the other at an angle. This type of drive shaft allows power to be transmitted while the angle of the other shaft is constantly changing. While a gimbal is a good option, it’s not a perfect solution for all applications.
CZPT, Inc. has state-of-the-art machinery to service all types of drive shafts, from small cars to race cars. They serve a variety of needs, including racing, industry and agriculture. Whether you need a new drive shaft or a simple adjustment, the staff at CZPT can meet all your needs. You’ll be back on the road soon!

U-joint

If your car yoke or u-joint shows signs of wear, it’s time to replace them. The easiest way to replace them is to follow the steps below. Use a large flathead screwdriver to test. If you feel any movement, the U-joint is faulty. Also, inspect the bearing caps for damage or rust. If you can’t find the u-joint wrench, try checking with a flashlight.
When inspecting U-joints, make sure they are properly lubricated and lubricated. If the joint is dry or poorly lubricated, it can quickly fail and cause your car to squeak while driving. Another sign that a joint is about to fail is a sudden, excessive whine. Check your u-joints every year or so to make sure they are in proper working order.
Whether your u-joint is sealed or lubricated will depend on the make and model of your vehicle. When your vehicle is off-road, you need to install lubricable U-joints for durability and longevity. A new driveshaft or derailleur will cost more than a U-joint. Also, if you don’t have a good understanding of how to replace them, you may need to do some transmission work on your vehicle.
When replacing the U-joint on the drive shaft, be sure to choose an OEM replacement whenever possible. While you can easily repair or replace the original head, if the u-joint is not lubricated, you may need to replace it. A damaged gimbal joint can cause problems with your car’s transmission or other critical components. Replacing your car’s U-joint early can ensure its long-term performance.
Another option is to use 2 CV joints on the drive shaft. Using multiple CV joints on the drive shaft helps you in situations where alignment is difficult or operating angles do not match. This type of driveshaft joint is more expensive and complex than a U-joint. The disadvantages of using multiple CV joints are additional length, weight, and reduced operating angle. There are many reasons to use a U-joint on a drive shaft.
air-compressor

maintenance interval

Checking U-joints and slip joints is a critical part of routine maintenance. Most vehicles are equipped with lube fittings on the driveshaft slip joint, which should be checked and lubricated at every oil change. CZPT technicians are well-versed in axles and can easily identify a bad U-joint based on the sound of acceleration or shifting. If not repaired properly, the drive shaft can fall off, requiring expensive repairs.
Oil filters and oil changes are other parts of a vehicle’s mechanical system. To prevent rust, the oil in these parts must be replaced. The same goes for transmission. Your vehicle’s driveshaft should be inspected at least every 60,000 miles. The vehicle’s transmission and clutch should also be checked for wear. Other components that should be checked include PCV valves, oil lines and connections, spark plugs, tire bearings, steering gearboxes and brakes.
If your vehicle has a manual transmission, it is best to have it serviced by CZPT’s East Lexington experts. These services should be performed every 2 to 4 years or every 24,000 miles. For best results, refer to the owner’s manual for recommended maintenance intervals. CZPT technicians are experienced in axles and differentials. Regular maintenance of your drivetrain will keep it in good working order.

China OEM Widely Used Hydraulic Clamshell Grab for Marine Crane   near me factory China OEM Widely Used Hydraulic Clamshell Grab for Marine Crane   near me factory

China manufacturer Hydraulic Clamshell Crane Grab with High Quality near me shop

Product Description


Hydraulic Clamshell Crane Grab with High Quality

 

Discription:

Used for building the base of the foundation pit digging mining, pit mining, gravel and clay, sand, coal loading. Particularly applicable to ditch or restricted space on one side of the excavation and loading. Apply to port ship, train and car.

With double oil cylinders drive and high strength steel production. With big closing force, excellent mining properties,and high work efficiency. Hydraulic turning points according to the customers’ demand, Without hydraulic rotary excavator grab use the oil cylinder or standby line, don’t need to add other hydraulic valve block and line. Rotary hydraulic excavator grab need add another set of hydraulic valve and pipeline to control, oil cylinder makes the piston protective device.

Advantage Hydraulic Grab:
1. The electro hydraulic grab suitable with single hook crane.

2. Electro Hydraulic grab is powerful and efficient in load and discharge different bulk cargo

3. Compare with remote control grab, can handle material quicker

4. Electro Hydraulic clamshell grab can be open and close at any time. More convince to operation it

5. The wire drum protects electric Hydraulic clamshell grab is in from side to side when working, especially when cleaning the vessel

Techinical specifiction:

Type Weihgt Volume Density SWL Size 
QSEH-1 (Kg) m3 (t)
          A B C D E
QSEH400-1 560 0.4  0.4-1.2 5 1260 810 1100 1350 950
QSEH500-1 650 0.5  0.4-1.2 6.25 1350 870 1200 1460 1571
QSEH630-1 770 0.63  0.4-1.2 7.6 1450 930 1290 1570 1100
QSEH800-1 920 0.8  0.4-1.2 9.4 1510 960 1340 1635 1250
QSEH1000-1 1070 1.0  0.4-1.2 11.34 1620 1030 1880 1760 1360
QSEH1250-1 1240 1.25  0.4-1.2 13.7 1740 1100 1450 1895 1450
QSEH1600-1 1500 1.6  0.4-1.2 17.1 1890 1560 1690 2060 1580
QSEH2000-1 1740 2.0  0.4-1.2 20.7 2030 1290 1820 2220 1700
QSEH2500-1 2571 2.5  0.4-1.2 25.1 2180 1385 1960 2390 1830
QSEH3000-1 2170 3.0  0.4-1.2 28.8 2315 1470 2085 2540 1940
QSEH3500-1 2260 3.5  0.4-1.2 32.3 2430 1540 2195 2670 2040
QSEH4200-1 2380 4.2 0.4-1.2 37.1 2580 1635 2330 2840 2170

Drawing:

Photos:

Packing:

Related products:

About us
QSHI supplies different kinds of products. High quality and favorable price.
We’re pleased to get your Inquiry and we will feedback ASAP.
We stick to the principle “Quality First, Service First, Continuous Improvement and Customer Satisfaction” and aim at “Zero Defect Zero Complaint”.
To perfect our service, we provide products with good quality at reasonable price.
Our Service
Being a good adviser and assistant of client, we can help them to get rich and generous returns on their investment.
1.Pre-sale services: 
a: Design customized project for clients.
b: Design and manufacture products according to clients special requirement.
c: Train technical personnel for clients.
2.Services during the sale:
a: Help clients to find reasonable freight forwarders ahead of delivery.
b: Help clients to draw solving plans.
3.After-sale services:
a: Assist clients to prepare for the construction scheme.
b: Install and debug equipment.
c: Train the first-line operators.
d: Examine equipment.
e: Take initiative to eliminate the troubles immediately.
f: Provide technical exchanging.
FAQ
 ORDER INTRODUCTION:
Pls kindly send us your detailed specifications as follow if you are interested in our grabs.
1 What’s the lifting material?
2 What’s the cubage of the grab?
3 What’s the SWL of your crane?
We will offer you the best suitable grab with best price and quality. These specifications above can make it clear about your requirements.
Thanks very much for your kindly cooperation!

 

The 5 components of an axle, their function and installation

If you’re considering replacing an axle in your vehicle, you should first understand what it is. It is the component that transmits electricity from 1 part to another. Unlike a fixed steering wheel, the axles are movable. The following article will discuss the 5 components of the half shaft, their function and installation. Hopefully you were able to identify the correct axle for your vehicle. Here are some common problems you may encounter along the way.
Driveshaft

five components

The 5 components of the shaft are flange, bearing surface, spline teeth, spline pitch and pressure angle. The higher the number of splines, the stronger the shaft. The maximum stress that the shaft can withstand increases with the number of spline teeth and spline pitch. The diameter of the shaft times the cube of the pressure angle and spline pitch determines the maximum stress the shaft can withstand. For extreme load applications, use axles made from SAE 4340 and SAE 1550 materials. In addition to these 2 criteria, spline rolling produces a finer grain structure in the material. Cutting the splines reduces the strength of the shaft by 30% and increases stress.
The asymmetric length of the shaft implies different torsional stiffness. A longer shaft, usually the driver’s side, can handle more twist angles before breaking. When the long axis is intact, the short axis usually fails, but this does not always happen. Some vehicles have short axles that permanently break, causing the same failure rate for both. It would be ideal if both shafts were the same length, they would share the same load.
In addition to the spline pitch, the diameter of the shaft spline is another important factor. The small diameter of a spline is the radius at which it resists twisting. Therefore, the splines must be able to absorb shock loads and shocks while returning to their original shape. To achieve these goals, the spline pitch should be 30 teeth or less, which is standard on Chrysler 8.75-inch and GM 12-bolt axles. However, a Ford 8.8-inch axle may have 28 or 31 tooth splines.
In addition to the CV joints, the axles also include CV joints, which are located on each end of the axle. ACV joints, also known as CV joints, use a special type of bearing called a pinion. This is a nut that meshes with the side gear to ensure proper shaft alignment. If you notice a discrepancy, take your car to a shop and have it repaired immediately.

Function

Axles play several important roles in a vehicle. It transfers power from the transmission to the rear differential gearbox and the wheels. The shaft is usually made of steel with cardan joints at both ends. Shaft Shafts can be stationary or rotating. They are all creatures that can transmit electricity and loads. Here are some of their functions. Read on to learn more about axles. Some of their most important features are listed below.
The rear axle supports the weight of the vehicle and is connected to the front axle through the axle. The rear axle is suspended from the body, frame and axle housing, usually spring loaded, to cushion the vehicle. The driveshaft, also called the propshaft, is located between the rear wheels and the differential. It transfers power from the differential to the drive wheels.
The shaft is made of mild steel or alloy steel. The latter is stronger, more corrosion-resistant and suitable for special environments. Forged for large diameter shafts. The cross section of the shaft is circular. While they don’t transmit torque, they do transmit bending moment. This allows the drive train to rotate. If you’re looking for new axles, it’s worth learning more about how they work.
The shaft consists of 3 distinct parts: the main shaft and the hub. The front axle assembly has a main shaft, while the rear axle is fully floating. Axles are usually made of chrome molybdenum steel. The alloy’s chromium content helps the axle maintain its tensile strength even under extreme conditions. These parts are welded into the axle housing.
Driveshaft

Material

The material used to make the axle depends on the purpose of the vehicle. For example, overload shafts are usually made of SAE 4340 or 1550 steel. These steels are high strength low alloy alloys that are resistant to bending and buckling. Chromium alloys, for example, are made from steel and have chromium and molybdenum added to increase their toughness and durability.
The major diameter of the shaft is measured at the tip of the spline teeth, while the minor diameter is measured at the bottom of the groove between the teeth. These 2 diameters must match, otherwise the half shaft will not work properly. It is important to understand that the brittleness of the material should not exceed what is required to withstand normal torque and twisting, otherwise it will become unstable. The material used to make the axles should be strong enough to carry the weight of a heavy truck, but must also be able to withstand torque while still being malleable.
Typically, the shaft is case hardened using an induction process. Heat is applied to the surface of the steel to form martensite and austenite. The shell-core interface transitions from compression to tension, and the peak stress level depends on the process variables used, including heating time, residence time, and hardenability of the steel. Some common materials used for axles are listed below. If you’re not sure which material is best for your axle, consider the following guide.
The axle is the main component of the axle and transmits the transmission motion to the wheels. In addition, they regulate the drive between the rear hub and the differential sun gear. The axle is supported by axle bearings and guided to the path the wheels need to follow. Therefore, they require proper materials, processing techniques and thorough inspection methods to ensure lasting performance. You can start by selecting the material for the shaft.
Choosing the right alloy for the axle is critical. You will want to find an alloy with a low carbon content so it can harden to the desired level. This is an important consideration because the hardenability of the alloy is important to the durability and fatigue life of the axle. By choosing the right alloy, you will be able to minimize these problems and improve the performance of your axle. If you have no other choice, you can always choose an alloy with a higher carbon content, but it will cost you more money.
Driveshaft

Install

The process of installing a new shaft is simple. Just loosen the axle nut and remove the set bolt. You may need to tap a few times to get a good seal. After installation, check the shaft at the points marked “A” and “D” to make sure it is in the correct position. Then, press the “F” points on the shaft flange until the points are within 0.002″ of the runout.
Before attempting to install the shaft, check the bearings to make sure they are aligned. Some bearings may have backlash. To determine the amount of differential clearance, use a screwdriver or clamp lever to check. Unless it’s caused by a loose differential case hub, there shouldn’t be any play in the axle bearings. You may need to replace the differential case if the axles are not mounted tightly. Thread adjusters are an option for adjusting drive gear runout. Make sure the dial indicator is mounted on the lead stud and loaded so that the plunger is at right angles to the drive gear.
To install the axle, lift the vehicle with a jack or crane. The safety bracket should be installed under the frame rails. If the vehicle is on a jack, the rear axle should be in the rebound position to ensure working clearance. Label the drive shaft assemblies and reinstall them in their original positions. Once everything is back in place, use a 2-jaw puller to pry the yoke and flange off the shaft.
If you’ve never installed a half shaft before, be sure to read these simple steps to get it right. First, check the bearing surfaces to make sure they are clean and undamaged. Replace them if they look battered or dented. Next, remove the seal attached to the bushing hole. Make sure the shaft is installed correctly and the bearing surfaces are level. After completing the installation process, you may need to replace the bearing seals.

China manufacturer Hydraulic Clamshell Crane Grab with High Quality   near me shop China manufacturer Hydraulic Clamshell Crane Grab with High Quality   near me shop