sauer sundstrand hydraulic pump series 90 made in china

Check out pic10, ever wondered what these check valves are for? Take a close look at the typical Sauer series 90 closed loop schematics. The multi-function valveacts

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...

11944 sauer danfoss products are offered for sale by suppliers on Alibaba.comAbout 15% % of these are hydraulic pumps, 4%% are hydraulic motors, and 2%% are hydraulic valves.

A wide variety of sauer danfoss options are available to you, such as piston motor, gear motor.You can also choose from pressure control valve, flow control valve and proportional valve sauer danfoss,as well as from planetary sauer danfoss and whether sauer danfoss is machinery repair shops, construction works , or manufacturing plant.

Danfoss was the company to invent the HST system for transit mixer and profits from expert knowledge. This was gathered in over 40 years of experience in the transit mixer application globally. To improve customer value even further, we introduced the T90 system of leading technology. This helps to support you taking your performance to the next level.

Smaller size and compact design: The decrease in size by over 30% reduces volumetric losses to a possible minimum. The T90 system is convenient for your drum arrangement, (dis)assembly and takes up little chassis space. This provides more choices for you

Right-sized fit for your application: The wide coverage for 6-18 m3 transit mixer makes the T90 system flexible. Enough to fit all kinds of applications

Proven reliability and high performance: The T90 system was developed using advanced technology based on decades of experience. This leads to an optimized and reliable performance, allowing for predictable and safe machine operation

Sauer 90 series category: PV90R030 / 042/055/075/100/130/180 / 250,90MO30 / 42/55/75/100 Applications: rollers, pavers, and stabilized soil mixing machine, concrete mixing transportation trucks, concrete pumps

On the unprecedented development platform of time and space, our company fully, accurately, timely and comprehensively grasps and utilizes knowledge and information, and constantly creates new Rexroth Motor, rexroth hydraulic motor, VDC hydrostatic pumps and motors needed by customers. Our R&D team sees challenges as a driving force for success, and each time we come up with a perfect solution to a problem, we take it to a whole new level. We have an efficient and excellent management team, implement a rigorous management system, and condense the strong strength of the company"s various departments. The business philosophy we pursue is "Changes for the Better", which fully reflects our position and demonstrates our desire to continuously create a better society and industry through innovation.

The pump and motor are designed for exclusive uni-pump use, making them lightweight, compact, easy to handle, and suitable for a wide range of appli-cations.

The pump and motor shaft are linked by a joint, which minimizes noise by eliminating the effects of shaft vibration and an off-center shaft. The coupling is constructed to allow constant lubrication, for friction-free long life.

We insist on the principle of development of "High quality, Efficiency, Sincerity and Down-to-earth working approach" to provide you with excellent service of processing for China Hydraulic Piston Pump Part Sauer Danfoss Eaton Vickers Kawasaki Liebherr Cat Hitachi Linde Kayaba NACHI Yuken Toshiba Kyb Toshiba Parker Jeil Teijin Spare. After years of continuous efforts and development, we have professional production technology and modern production and testing equipment. We always adhere to the strong enterprise to serve the country, and consciously combine the development of the enterprise with the national strategy, the requirements of the times and social progress.