roller stator hydraulic pump made in china

By introducing HMF Series static hydraulic transmission from Highland of China, we can provide axial hydraulic pump and hydraulic motor assembly and hydraulic system with high quality, high-performance parameters. Pump is the variable one that is with Charge Pump, and the motor the quantitative, or variable one with valve assembly. The control way of variable displacement pump and motor can be manual or hydraulic operated, and can simply control speed, direction and power of the output shaft of hydraulic motor. It is widely used in agricultural machinery, engineering machinery, mining machinery, aviation and transport hydraulic engineering machinery and other equipment.

Our products are with careful processing, reliable quality, and prompt delivery. In the selection and use of the static hydraulic gearing, we will provide you good service.

With ability of hydraulic design, manufacture and repairmen,our company is a professional and high-tech enterprise.Our company have strong developing capability, precision machinery equipment, exquisite workmanship, high precision measuring method and perfect scientific management system.

Alibaba.com offers 21,640 size hydraulic motor products. such as piston motor, gear motor, and vane motor. You can also choose from new. As well as from 1 year, 6 months, and 1.5 years. And whether size hydraulic motor is hydraulic motors, hydraulic power units, or fittings.

Roller stator hydraulic motoris a working device that converts hydraulic energy into mechanical energy, outputs mechanical energy outward with rotational motion, and obtains the speed and rotation distance on the output shaft.

1. The oil discharge port pressure of the hydraulic motor is slightly greater than the atmospheric pressure. The diameter of the inlet and outlet ports is the same.

The main characteristics of low-speed hydraulic motor are: large displacement, large volume, low speed, can be directly connected with the working mechanism, no need for deceleration device, so that the transmission mechanism is greatly simplified, the output torque of low-speed hydraulic motor is large, up to thousands to tens of thousands of Nm, so it is also called low-speed high-torque hydraulic motor.

Radial piston motors are low-speed, high-torque hydraulic motors. Low-speed hydraulic motors can be divided into single-acting and multi-acting according to their number of actions per revolution.

2. Multi-acting internal curve piston motor: the motor is composed of distribution shaft, cylinder block, plunger, beam, roller, stator and output shaft. The displacement of this motor is doubled compared to single-stroke motors. Due to the increase in the number of equivalent plungers, the output torque increases correspondingly and the torque pulsation rate decreases at the same working pressure. Sometimes this motor is made into multiple rows of plungers, the number of plungers is more, the output torque is further increased, and the torque pulsation rate is further reduced, so this motor can be made with a large displacement and can run smoothly at very low speeds.

Hanjiu is very good for the production of roller stator hydraulic motors, and with high quality and perfect after-sales has gained a large number of repeat customers, choose Hanjiu to make your experience more pleasant.

In this article I would like to throw in my modest opinion about non-original spare parts - a frequent discussion topic among folks involved in the business of hydraulic pump and motor overhauling.

Although workshops can"t repair pumps without spare parts, they can choose where to buy the spares, and this choice is the key factor that defines how much money they make and how much "overhauling quality" they deliver. With so many suppliers and resellers of non-genuine replacement parts for hydraulic pumps and motors popping up every day, choosing the right "economic" supplier has become all but an easy task involving trial and error overhauls, pissed-off mechanics, pissed-off customers and even forever lost contracts and clients.

A mechanic, for example, being the person who shoves the parts into them pumps and motors, will always prefer genuine replacement parts over any aftermarket ones for one simple reason - they are easy to work with, they always fit and require no "finishing touches" - ergo his work is faster and simpler. Genuine parts last long and are hardly ever faulty, which makes the testing and adjustment procedures safer and reduces the risk of having to re-open overhauled units to a minimum. A mechanic doesn"t care about how much they cost because he"s not the one paying for them.

The truth lies, as always, in the golden middle, and I, personally, came to the conclusion that although most of the times you do get what you pay for, this doesn"t mean that you can"t get a bargain for a penny every once in a while, so a sound overhauler keeps his eyes and mind open and uses both genuine and aftermarket parts in a combination defined by his trial an error experience and the pump/motor application demands. This approach is sound because even in pre-recession years there were hydraulic equipment owners who actually preferred aftermarket to genuine in the pursuit of cutting down overhaul expenses. So, some clients will want the genuine quality, and some will want the lower price - and in order to satisfy both you, naturally, have to be able to serve both, but - if your goal is to deliver quality repairs, aftermarket part suppliers should be chosen with a cool head and on the basis of quality, not price!

OK, you say, so I am a hydraulic equipment owner, and I"ve got this excavator pump to repair, how do I know if I am going to be scammed with them Chinese spares? Well, there is no simple answer to this question...There is an opinion that if an overhaul is backed up by warranty than you"re on the safe side, no matter what parts were used - this, unfortunately, is not entirely true, because if you"re the unlucky hydraulic pump owner caught in the "error" stage of the new supplier trial and error validation process, you can get two different answers and two very different bills depending on how honest the company you are dealing with is. An honest workshop will admit their fault and try to correct the mistake as fast as they can, and if you are not the first-time customer you might even get the - "sorry about that, dude, the parts"re all **cked up..." confession, while a less candid workshop will give you the standard "commission errors committed by non-qualified personnel plus hard particle contamination in conjunction with the inappropriate oil temperature and deficient system design" excuse, and make you pay for their poor part supplier choice. So I"d say that warranty alone isn"t a guarantee, and would cast my vote for warranty combined with transparency - if a workshop has good experience with their non-genuine spare parts supplier - they won"t be ashamed to admit that the parts are not original.

Now, a separate word must be said about Chinese suppliers of spare parts for hydraulic pumps and motors. There are hundreds of companies in China that will sell you spare parts for almost any existing brand, with the quality ranging from superb to unacceptable and even ridiculously unacceptable. However with most suppliers (and especially resellers) the fact that you have received a batch of supreme quality spares doesn"t guarantee that you will get the same quality in the next batch. So if you ever decide to "go oriental" - be prepared for nasty surprises! (At least that was the situation at the moment of writing - December 2011).

My calling is more technical than commercial, therefore I am mainly interested in the quality of the spares rather than their price or where they come from - so please, don"t bother asking me for a list of "unofficially approved" Chinese suppliers of cheap yet extremely high quality spare parts for hydraulic pumps and motors - I won"t provide it because I frankly don"t have it! We do use some aftermarket spares from China, we did have our share of mishaps and disappointments with Chinese made parts, and our initial "Hurrays" got eventually replaced by "Boos" for most of them. Since our policy has always been to never let a client pay for a breakdown caused by a low quality part, a couple of lessons "learned the hard way" taught us that in most cases (not all, though) using Chinese spares in hydraulic pumps and motors is like using bathroom soap for filling cakes - looks and smells nice, yet still tastes like crap...