China manufacturer Excavator Cylinder for CZPT Excavator Parts 31n9-50132 31n9-60110 a/c vacuum pump

Product Description


KO MA TSU: PC35MR ,PC55, PC60,PC75, PC78, PC120,PC128, PC130, PC200, PC220, PC300, PC360, PC400, PC450, PC650, PC1200,
Hitachi: EX100, EX120, EX150, EX160, EX200, EX220, EX300, EX400, ZX200,ZX210,ZX330,ZX400
Daewoo: DH55,DH200, DH220, DH280, DH300, DH320, DH330,DH420
Hyundai: R200, R210, R220, R225,R250, R290,R305,R335, R360, R400, R500
Volvo: EC210.EC240, EC290, EC360,  EC460
Sumitomo: SH60, SH100, SH120, SH200, SH220, SH300, LS580, LS1600, LS2600, LS2650, LS2800, LS3400, LS4300
Mitsubishi: MS180, MS230, MS240, MS380
KATO: HD250, HD400, HD450, HD510, HD550, HD650, HD700, HD770, HD800, HD820, HD850, HD880, HD900, HD1200, HD1250, HD1430, HD1880
KOBELCO: SK07, SK60, SK100, SK120, SK200, SK220, SK230, SK300, SK09, SK912, SK907
SHXIHU (WEST LAKE) DIS.I: SE60 SE70 SE80 SE130 SE210, SE220, SE240 ,SE270 SE330 SE360
ZOOMLION: ZE60 ZE85 ZE210 ZE220 ZE230 ZE260 ZE330 ZE360 ZE480 ZE700
XC M G : XE15 XE40 XE50 XE135 XE150 XE210 XE230 XE235 XE260 XE335 XE370 XE390 XE470 XE490 XE500 XE700
S A NY: SY55, SY60,SY65,SY75,SY85, SY95,SY115, SY135, SY155,SY205, SY215,SY225,SY235,SY265,SY305,SY335,SY365,SY385, SY465 SY700, SY850
XIHU (WEST LAKE) DIS.DE: SC760, SC485, SC450, SC400, SC360, SC300, SC330, SC270, SC240,  SC220 , SC210
LIUGONG: CLG908, CLG909, CLG920, CLG922, CLG925, CLG927, CLG933, CLG936, CLG939, CLG945,
LONGKING: LG6150 LG6215 CDM6150 CDM6210 CDM6225 CDM6235
31N9-50132 31N9-60110
175-63-42700    14X-63-X1063    206-63-63340
175-63-42800    14Y-63-57132    206-63-K1140
175-63-43700    4438245    225-4531 274-2456  
175-63-43800    16Y-62-50000    225-4525 
175-63-52700    16Y-63-13000    225-4522 266-8087 
175-63-13400    16Y-84-62000    707-01-XT860  
175-63-13300    23Y-62B-57100    707-01-XT850  
155-15-0571    23Y-63B-57100    707-01-XT830  
23Y-89-10400    23Y-64B-57100    707-01-XT840
23Y-89-10300    175-63-13300    707-01-0F702
23Y-89-15710    175-63-52700    440-5712A 440-00322A
23Y-89-15710    175-63-42700    1146-57180
23Y-64B-57100    175-63-43700    14557151
23Y-64B-57100    14508475    1146- 0571 1
154-63-X2070    14556580    14557154
154-63-X2571    1146-07290    14557150
154-63-X2571    14523672    14557155
16Y-84-62000    14535510    1146-57190
16Y-63-13000    14595214    14557152
16Y-62-50000    1146-5710    1146-57100
16L-62C-10000    14523673    14557153
16Y-63-13000    14572137    14518003
16L-62C-20000    14548954    14564001
23Y-62B-57100    14550096    14517998
23Y-62B-57100    14550055    14564007
23Y-63B-01100    14548954    14518289
23Y-89B-01500    14639077    14564571
23Y-89B-01600    14606236    14517999
23Y-89B-01300    14639078    14564016
23Y-89B-01400    1457571    14518290
16Y-62-50000    14641439    14523674
16Y-62-60000    14511286    14564571
16Y-63-13000    14564681    14518000
707-01-XY800    14546548    14523675
707-01-XY810    14564682    14564030
707-01-XY820    14587748    14547543
707-01-XZ901    14528492    14547545
707-01-XY442    14564681    14547546
707-01-XY452    14544682    14538693
707-01-0H091    14564683    14617784
707-01-0A430    707-01-0F702    14538695
707-01-0A450    707-01-ZX880    14375081
707-01-0A460    707-01-ZX890    14376231
707-01-XZ993    31N4-50110    14522770
707-01-XU760/770    31N4-50120    14375085
707-01-XU780    31N4-50130    14547230
707-01-XU790    31N4-50131    14547232
208-63-57130    31N4-50132    14547233
208-63-57120    31N4-50133    14563968
707-01-0H081    31N4-60110    14563974
707-01-0H061    31N4-50110    14512429
707-01-0H091    31N4-50120    14522908
207-63-57130    31N4-50132    14534547
2440-9230    31N4-50133    14563977
2440-9309    31N4-60110    14512423
440-05710    31Q4-50110    14563986
2440-9231    31Q4-50120    14514851
2440-9310    31Q4-50130    14523664
440-05712    31Q4-60111    14563993
2440-9242    31N6-50121    14534531
2440-9232    31N6-50125    14554977
2440-9233    31N6-50111    14534532
2440-9230    31N6-50115    14554978
2440-9231    31N6-50130    14534533
2440-9249    31N6-50135    14554979
2440-9232    31N6-50137    14615571
2440-9242    31N6-50138    14534532
2440-9233    31N6-60110    14534533
440-05711    31N6-60115    14563995
440-05712    31N6-50125    14547225
440-05714    31N6-50115    1459571
2440-9233    31N6-50137    14534532
440-00408    31N6-50138    14534533
440-00409    31N6-60115    14563900
440-0571    31Q6-50110    14563941
440-00425    31Q6-50120    14514829
440-571    31Q6-50131    14563947
K1026249    31Q6-60110    1455571
K1026250    31N7-50110    1455717
K1571800    31N7-50120    14541237
K1571712    31N7-50131    14563959
440-571    31N7-50132    14514833
2440-9344    31N7-60110    14541267
2440-9345    31N7-50110    14563965
440-0571    31N7-50120    14551710
440-00571    31N7-50132    14551715
2440-9344    31N7-60110    14551711
2440-9345    31Q7-50110    14551712
440-0571    31Q7-50120    14551717
440-00571    31Q7-50130    14572350
K1014798    31Q7-60110    14572351
K1014799    31N8-50121    14594986
K1014805    31N8-50111    14572353
K1014824    31N8-50130    14594988
2440-9234    31N8-60110    14572352
2440-9235    31N8-60111    14594987
2440-9236    31N8-50121    14530664
2440-9237    31N8-50125    14540644
440-00059    31N8-50111    14514556
2440-9234    31N8-50115    14539227
2440-9235    31N8-50130    14510443
2440-9236    31N8-50135    14521658
2440-9237    31N8-50136    14522902
440-00059    31N8-50137    14535421
K1008084    31N8-50138    14514557
K1008085    31N8-60110    14521664
K1008086    31N8-60115    14522903
K1008094    31N8-50125    14536161
K100 0571     31N8-50115    14563858
K10571    31N8-50138    14563880
K10 0571 7    31N8-50139    145157193
K1000884    31N8-60115    14533937
440-00042    31Q8-50110    14563892
440-00043    31Q8-50120    14514558
440-00044    31Q8-50131    14541245
440-00045    31Q8-60110    14563898
K1011571    31Q8-60111    1455571
K1011571    31N9-50121    1455 0571
K1011571    31N9-50122    1455571
K1011044    31N9-50111    1455571
2440-9238    31N9-50112    1455571
2440-9239    31N9-50130    1455571
2440-9240    31N9-50131    1455 0571
2440-9241    31N9-60110    1455571
2440-9238    31N9-60111    14567071
2440-9239    31N9-50121    14588514
440-05717    31N9-50122    14567072
2440-9241    31N9-50111    14588519
2440-9282    31N9-50112    14567067
2440-9233    31N9-50130    14588513
440-00430    31N9-50131    14567071
440-571    31N9-60110    14588514
440-0571    31N9-60111    14567072
440-0571    31Q9-50110    14588519
440-571    31Q9-50120    14503654
440-0571    31Q9-50130    14563836
2440-9280    31Q9-60110    14535416
2440-9281    31NA-50122    14563816
K10 0571 9    31NA-50123    14523667
K10 0571 0    31NA-50112    14572517
K1006192    31NA-50113    14549596
K1006202    31NA-50132    14549597
2440-9296    31NA-60111    14572518
2440-9295    31NA-50123    14508896
2440-9293    31NA-50124    14563810
2440-9294    31NA-50113    14535416
K1003432    31NA-50114    14563816
K1003433    31NA-50132    14523667
K1003434    31NA-50134    14572517
K1003483    31NA-60111    14549596
440-5717    31NA-60112    14549597
440-5716    31QA-50110    14549598
440-00015    31QA-50120    14549596
440-00016    31QA-50130    14549597
440-5717    31QA-60110    14572520
440-5716    31NB-55712    14549596
440-00015    31NB-55712    14642744
440-00016    31NB-55713    14549597
K1001341    31NB-60133    14642745
K1001340    31NB-55712    14572518
K1001344    31NB-55713    14642746
K1014381    31NB-55712    33NB-55710
K1001821    31NB-55713    33NB-55710
K1001341    31NB-55713    33NB-60130
K1001340    31NB-55714    33NB-55710
K1001344    31NB-60133    33NB-55710
K1014381    31NB-60134    33NB-55710
K1001821    31QB-50110    33NB-60130
400309-5714    31QB-50120    31QB-50110
400309-5714    31QB-50130    31QB-50120
400305-00071    31QB-60110    31QB-50130
40571-00072    31QB-60111    31QB-63110
31QE-50111    33NB-55710    31ND-5571
31QE-50131    31ND-6571    31ND-5571
    31QE-61110    31ND-50030

Warranty: 12 Month
Type: Hydraulic Cylinder
Application: Excavator
Certification: ISO9001: 2000
Condition: New
Fit: PC750 Ex1200 PC1250


hydraulic cylinder

How do hydraulic cylinders handle variations in temperature and harsh operating environments?

Hydraulic cylinders are designed to handle variations in temperature and harsh operating environments by incorporating specific features and materials that ensure their durability, reliability, and performance. The ability of hydraulic cylinders to withstand extreme temperatures, corrosive environments, and other harsh conditions is crucial for their successful operation in a wide range of applications. Here’s a detailed explanation of how hydraulic cylinders handle variations in temperature and harsh operating environments:

1. Temperature Range:

– Hydraulic cylinders are designed to operate within a specified temperature range. The materials used in their construction, such as cylinder barrels, pistons, seals, and lubricants, are selected to withstand the anticipated temperature variations. Specialized seals and O-rings made from materials like nitrile, Viton, or polyurethane are used to maintain their sealing properties over a wide temperature range. Heat-resistant coatings or thermal insulation may be applied to certain components to protect them from high temperatures.

2. Thermal Expansion:

– Hydraulic cylinders are designed to accommodate thermal expansion and contraction that occurs with temperature changes. The materials used in their construction have different coefficients of thermal expansion, allowing the cylinder components to expand or contract at a similar rate. This design consideration prevents excessive stress, binding, or leakage that could result from thermal expansion or contraction.

3. Heat Dissipation:

– In applications where hydraulic cylinders are subjected to high temperatures, heat dissipation mechanisms are employed to prevent overheating. Cooling fins or heat sinks may be incorporated into the cylinder design to increase the surface area for heat transfer. In some cases, external cooling methods such as air or liquid cooling systems can be used to maintain optimal operating temperatures.

4. Corrosion Resistance:

– Hydraulic cylinders used in harsh operating environments are constructed from materials that exhibit excellent corrosion resistance. Stainless steel, chrome-plated steel, or other corrosion-resistant alloys are commonly used for cylinder components exposed to corrosive substances or environments. Additionally, surface treatments such as coatings, plating, or specialized paints can provide an extra layer of protection against corrosion.

5. Sealing Systems:

– Hydraulic cylinders employ sealing systems that are specifically designed to withstand harsh operating environments. The seals used in hydraulic cylinders are selected based on their resistance to temperature extremes, chemicals, abrasion, and other environmental factors. Specialized seal designs, such as wiper seals, rod seals, or high-temperature seals, are utilized to maintain effective sealing and prevent contamination of the hydraulic fluid.

6. Lubrication:

– Proper lubrication is essential for the smooth operation and longevity of hydraulic cylinders, particularly in harsh operating environments. Lubricants are selected based on their ability to withstand high temperatures, resist oxidation, and provide effective lubrication under extreme conditions. Regular maintenance and lubrication practices ensure that the cylinder components continue to operate smoothly and reduce the effects of wear and friction.

7. Robust Construction:

– Hydraulic cylinders designed for harsh operating environments are built with robust construction techniques to withstand the rigors of such conditions. The cylinder barrels, rods, and other components are manufactured to meet strict quality and durability standards. Welded or bolted construction methods are employed to ensure the structural integrity of the cylinders. Reinforcements, such as flanges or tie rods, may be added to enhance the cylinder’s strength and resistance to external forces.

8. Environmental Protection:

– Hydraulic cylinders can be equipped with additional protective features to shield them from harsh operating environments. Protective covers, boots, or bellows can be used to prevent contaminants, debris, or moisture from entering the cylinder and compromising its performance. These protective measures help extend the service life of hydraulic cylinders in demanding conditions.

9. Compliance with Standards:

– Hydraulic cylinders manufactured for specific industries or applications often comply with industry standards or regulations related to operating temperature ranges, environmental conditions, or safety requirements. Compliance with these standards ensures that hydraulic cylinders are designed and tested to meet the specific demands of their intended operating environments.

In summary, hydraulic cylinders are designed to handle variations in temperature and harsh operating environments by incorporating suitable materials, thermal expansion considerations, heat dissipation mechanisms, corrosion-resistant components, specialized sealing systems, proper lubrication, robust construction techniques, protective features, and compliance with industry standards. These design considerations and features enable hydraulic cylinders to operate reliably and effectively in a wide range of demanding applications and environmental conditions.

hydraulic cylinder

Advancements in Hydraulic Cylinder Technology Improving Corrosion Resistance

Advancements in hydraulic cylinder technology have led to significant improvements in corrosion resistance. Corrosion is a major concern in hydraulic systems, especially in environments where cylinders are exposed to moisture, chemicals, or corrosive agents. These advancements aim to enhance the durability and longevity of hydraulic cylinders. Let’s explore some of the key advancements in hydraulic cylinder technology that have improved corrosion resistance:

  1. Corrosion-Resistant Materials: The use of corrosion-resistant materials is a fundamental advancement in hydraulic cylinder technology. Stainless steel, for example, offers excellent resistance to corrosion, making it a popular choice in marine, offshore, and other corrosive environments. Additionally, advancements in metallurgy have led to the development of specialized alloys and coatings that provide enhanced corrosion resistance, extending the lifespan of hydraulic cylinders.
  2. Surface Treatments and Coatings: Various surface treatments and coatings have been developed to protect hydraulic cylinders from corrosion. These treatments can include electroplating, galvanizing, powder coating, and specialized corrosion-resistant coatings. These coatings create a barrier between the cylinder surface and corrosive elements, preventing direct contact and inhibiting the onset of corrosion. The selection of appropriate coatings depends on the specific application and environmental conditions.
  3. Sealing Technology: Effective sealing systems are crucial in preventing water, moisture, and contaminants from entering the cylinder and causing corrosion. Advancements in sealing technology have led to the development of high-quality seals and advanced sealing designs that offer superior resistance to corrosion. These seals are typically made from materials specifically engineered to withstand corrosive environments, ensuring long-term sealing performance and minimizing the risk of corrosion-related issues.
  4. Improved Surface Finishes: The surface finish of hydraulic cylinders plays a role in their resistance to corrosion. Advancements in machining and polishing techniques have allowed for smoother and more uniform surface finishes. Smoother surfaces reduce the likelihood of corrosion initiation and make it easier to clean and maintain hydraulic cylinders. Additionally, specialized finishes, such as passivation or chemical treatments, can be applied to further enhance corrosion resistance.
  5. Environmental Protection Features: Hydraulic cylinders can be equipped with additional features to protect against corrosion. These features may include protective boots, bellows, or shields that guard vulnerable areas from exposure to corrosive agents. By incorporating these protective elements into the design, hydraulic cylinders can withstand harsh environments and minimize the risk of corrosion-related damage.

In summary, advancements in hydraulic cylinder technology have significantly improved corrosion resistance. The use of corrosion-resistant materials, advanced surface treatments and coatings, innovative sealing technology, improved surface finishes, and the incorporation of environmental protection features have all contributed to enhanced durability and longevity of hydraulic cylinders in corrosive environments. These advancements ensure reliable performance and reduce the maintenance and replacement costs associated with corrosion-related issues.

hydraulic cylinder

How do hydraulic cylinders handle variations in load, pressure, and speed?

Hydraulic cylinders are designed to handle variations in load, pressure, and speed effectively. They incorporate features and components that allow them to adapt to changing operating conditions and maintain optimal performance. Here’s a detailed explanation of how hydraulic cylinders handle variations in load, pressure, and speed:

Variations in Load:

– Hydraulic cylinders are capable of handling variations in load by adjusting the force they exert. The force output of a hydraulic cylinder is determined by the hydraulic pressure and the surface area of the piston. When the load increases, the pressure in the hydraulic system can be adjusted to generate a higher force. This adjustment can be achieved by regulating the flow of hydraulic fluid into the cylinder using control valves. By controlling the pressure and flow, hydraulic cylinders can adapt to different load requirements, ensuring that the force applied is sufficient to handle the load while preventing excessive force that could cause damage.

Variations in Pressure:

– Hydraulic cylinders are designed to handle variations in pressure within the hydraulic system. They are equipped with seals and other components that can withstand high-pressure conditions. When the pressure within the hydraulic system fluctuates, the hydraulic cylinder adjusts accordingly to maintain its performance. The seals prevent fluid leakage and ensure that the hydraulic pressure is effectively transmitted to the piston, allowing the cylinder to generate the required force. Additionally, hydraulic systems often incorporate pressure relief valves and other safety mechanisms to protect the cylinder and the entire system from overpressure conditions.

Variations in Speed:

– Hydraulic cylinders can handle variations in speed through the control of hydraulic fluid flow. The speed of a hydraulic cylinder’s extension or retraction is determined by the rate at which hydraulic fluid enters or exits the cylinder. By adjusting the flow rate using flow control valves, the speed of the cylinder’s movement can be regulated. This allows for precise control over the speed, enabling operators to adapt to varying speed requirements based on the specific task or load. Furthermore, hydraulic systems can incorporate flow control valves with adjustable orifice sizes to fine-tune the speed of the cylinder’s movement.

Load-Sensing Technology:

– Advanced hydraulic systems may incorporate load-sensing technology to further enhance the ability of hydraulic cylinders to handle variations in load, pressure, and speed. Load-sensing systems monitor the load demand and adjust the hydraulic pressure and flow accordingly to meet that demand. This technology ensures that the hydraulic cylinder provides the necessary force while optimizing energy efficiency. Load-sensing systems are particularly beneficial in applications where the load requirements can vary significantly, allowing hydraulic cylinders to adapt in real-time and maintain precise control over force and speed.


– Hydraulic systems can also utilize accumulators to assist in handling variations in load, pressure, and speed. Accumulators store hydraulic fluid under pressure, which can be released when needed to supplement the flow and pressure in the system. When there are sudden increases in load or pressure demands, accumulators can provide additional fluid to the hydraulic cylinder, ensuring smooth operation and preventing pressure drops. Similarly, accumulators can assist in maintaining consistent speed by compensating for fluctuations in flow rate. They act as a supplemental energy source, helping hydraulic cylinders respond effectively to variations in operating conditions.

In summary, hydraulic cylinders handle variations in load, pressure, and speed through various mechanisms and components. They can adjust the force output to accommodate different load requirements by regulating hydraulic pressure. The seals and components within hydraulic cylinders allow them to withstand variations in pressure within the hydraulic system. By controlling the flow of hydraulic fluid, hydraulic cylinders can regulate the speed of their movement. Advanced technologies such as load-sensing systems and the use of accumulators further enhance the adaptability of hydraulic cylinders to changing operating conditions. These features and mechanisms enable hydraulic cylinders to maintain optimal performance and provide reliable force and motion control in a wide range of applications.

China manufacturer Excavator Cylinder for CZPT Excavator Parts 31n9-50132 31n9-60110   a/c vacuum pump		China manufacturer Excavator Cylinder for CZPT Excavator Parts 31n9-50132 31n9-60110   a/c vacuum pump
editor by CX 2023-11-15