Produktbeskrivning
Produktbeskrivning
TELESCOPIC CYLINDERS FOR DUMP TRAILERS
Underbody cylinders
JUNRUI designs and manufactures hydraulic underbody tipping cylinders from 1 stage up to 9 stages for dump trailers and for all other types of tipping applications
CUTTING EDGE TECHNOLOGY
JUNRUI has fully automated production and decades of experience in designing and engineering hydraulic cylinders for the leading tipping vehicle manufacturers, using state-of-the-art machinery and advanced technologies.
JUNRUI telescopic hydraulic underbody cylinders are manufactured using the most accurate machining to achieve the finest finish and precise tolerances. Chrome plated stages and external zinc plated finished tubes are also available CHINAMFG request.
Cylindermodell | Stages | Rated Pressure | Stroke (mm) | Lifting Capacity | Matched power unit Model |
SYG-4E-820 | 4 | 16MPa | 820 | 2–5 TONS | HPU-6L |
SYG-4E-1000 | 4 | 16MPa | 1000 | 2–5 TONS | HPU-10L |
SYG-5E-1200 | 5 | 16MPa | 1200 | 3–8 TONS | HPU-10L |
SYG-5E-1800 | 5 | 16MPa | 1800 | 3–8 TONS | HPU-16L |
Special Customized | Customize | Customize | Customize | Customize | Customize |
Front end telescopic cylinder scope | |
Bore size | 60mm-220mm |
Stage | 2-6 stages |
Stroke | Maximum 12000mm(450″) |
Working pressure | Maximum 210bar(3000PSI) |
Mounting style | Trunnion, pin eye |
Painting | Follow customers’ requirement |
Materials and technology | |
Barrel/Tube | 1. Material: SAE1571(20#) , SAE1045(45#) ,16Mn(Q345B),27SiMn,etc. 2. Technology: cold drawn ,hot rolled,forged |
Piston rod | 1. Material: SAE1045(45#),35CrMo,42CrMo4,etc. 3. Surface treatment: chrome plated, nickel-chromium plated, nitriding, nitrocarburizing |
Seal kits | 1. Hallite, NOK, Parker, Hercules,Trelleborg,China made,ZheJiang made 2. Choose by different working condition and requirements. |
Företagsprofil
JUNRUI is a professional hydraulic equipment manufacturer, mainly engaged in hydraulic system design, manufacture, installation, transformation, sales, and technical services. Our manufacturing facilities are certified to the ISO 9001 standard. We are an approved supplier to many equipment manufacturers in China. We are also partners of many customers from America,Canada,Australia, Germany, England and other European Countries.Product quality, shorter delivery time and customer satisfaction are our long term commitment to our CHINAMFG customers. Hope to be your partner.
The company has imported CNC deep hole boring machines, CNC laser cutting machines, CNC machining centers, CNC cleaning machines, automatic assembly lines for hydraulic cylinders, robot welding stations, automatic welding machines and other precision processing equipment, over 200 sets.
After years of development, JUNRUI Hydraulic has developed into an enterprise with complete hardware facilities, sophisticated processing equipment, strong technical force, and good social benefits. For the stable development of your main business, we look CHINAMFG to cooperating with you.
Exhibition
Certifications
Q1: Are you a trading company or a manufacturer?
A: We have our own factory.
Q2: Are you able to make Non-standard or customized products?
A: Yes, we can.
Q3: How long is your delivery time?
A: Normally, the delivery time is 7 days if we have stock, 15-30 working days if we don’t. but it also depends on the product
requirements and quantity.
Q4: Do you provide samples? are the samples free or not?
A: Yes, we can provide samples, but they are not free of charge.
Q5: What are your payment terms?
A: 30% deposit T/T or Irrevocable L/C at sight, If you have any questions, please feel free to contact us.
Q6: What are your After-sales services?
A: Before shipment, Each individual product will be strictly inspected on our factory QC Process System. In addition, We have a
Customer Service team to respond to customers’ questions within 12 hours. Being helpful in solving customers’ problems is always
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| Certification: | CE, ISO9001 |
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| Pressure: | 7MPa~31.5MPa |
| Work Temperature: | -20~80ºC |
| Acting Way: | Single Acting |
| Working Method: | Straight Trip |
| Adjusted Form: | Regulated Type |
| Samples: | US$ 500/Piece 1 Piece(Min.Order) | |
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| Customization: | Available |
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Hur står sig hydraulcylindrar i jämförelse med andra metoder för kraftgenerering, som elmotorer?
Hydraulcylindrar och elmotorer är två olika metoder för kraftgenerering med distinkta egenskaper och tillämpningar. Även om både hydraulcylindrar och elmotorer kan generera kraft, skiljer de sig åt vad gäller deras arbetsprinciper, prestandaegenskaper och lämplighet för specifika tillämpningar. Här är en detaljerad jämförelse av hydraulcylindrar och elmotorer:
1. Arbetsprincip:
– Hydraulcylindrar: Hydraulcylindrar genererar kraft genom att omvandla vätsketryck till linjär rörelse. De består av en cylindercylinder, kolv, kolvstång och hydraulvätska. När trycksatt hydraulvätska kommer in i cylindern trycker den mot kolven, vilket får kolvstången att förlängas eller dras tillbaka, vilket genererar en linjär kraft.
– Elmotorer: Elmotorer genererar kraft genom att omvandla elektrisk energi till rotationsrörelse. De består av en stator, rotor och ett elektromagnetiskt fält. När en elektrisk ström appliceras på motorns lindningar skapas ett magnetfält som interagerar med rotorn, vilket får den att rotera och generera vridmoment.
2. Kraft och makt:
– Hydraulcylindrar: Hydraulcylindrar är kända för sin höga kraftkapacitet. De kan generera betydande linjära krafter, vilket gör dem lämpliga för tunga applikationer som kräver lyft, skjutning eller dragning av stora laster. Hydraulsystem kan ge hög kraftuttag även vid låga hastigheter, vilket möjliggör exakt kontroll över krafttillämpningen. Hydraulsystem arbetar dock vanligtvis vid lägre hastigheter jämfört med elmotorer.
– Elmotorer: Elmotorer utmärker sig genom att ge höga rotationshastigheter och används ofta för applikationer som kräver snabb rörelse. Även om elmotorer kan generera betydande vridmoment tenderar de att ha lägre kraftuttag jämfört med hydraulcylindrar. Elmotorer är lämpliga för applikationer som involverar kontinuerlig rotationsrörelse, såsom att driva transportband, roterande maskiner eller driva fordon.
3. Kontroll och precision:
– Hydraulcylindrar: Hydraulsystem erbjuder utmärkt kontroll över kraft, hastighet och positionering. Genom att reglera flödet av hydraulvätska kan kraften och hastigheten hos hydraulcylindrarna styras exakt. Hydraulsystem kan ge gradvis acceleration och retardation, vilket möjliggör smidiga och precisa rörelser. Denna kontrollnivå gör hydraulcylindrar väl lämpade för applikationer som kräver exakt positionering, till exempel inom industriell automation eller byggutrustning.
– Elmotorer: Elmotorer erbjuder också exakt kontroll över hastighet och positionering. Genom motorstyrningstekniker som varierande spänning, frekvens eller pulsbreddsmodulering (PWM) kan rotationshastigheten och positionen för elmotorer styras noggrant. Elmotorer används ofta i applikationer som kräver exakt hastighetsreglering, såsom robotteknik, CNC-maskiner eller servosystem.
4. Effektivitet och energiförbrukning:
– Hydraulcylindrar: Hydraulsystem kan vara mycket effektiva, särskilt när de är rätt dimensionerade och utformade. Hydraulsystem har dock vanligtvis högre energiförluster på grund av faktorer som vätskeläckage, friktion och värmeutveckling. Den totala effektiviteten hos ett hydraulsystem beror på design, komponentval och underhållspraxis. Hydraulsystem kräver en hydraulisk kraftenhet för att trycksätta hydraulvätskan, vilket förbrukar ytterligare energi.
– Elmotorer: Elmotorer kan ha hög verkningsgrad, särskilt när de används under optimala driftsförhållanden. Elmotorer har lägre energiförluster jämfört med hydrauliska system, främst på grund av avsaknaden av vätskeläckage och lägre friktionsförluster. Den totala verkningsgraden hos en elmotor beror på faktorer som motordesign, belastningsförhållanden och styrtekniker. Elmotorer kräver en elektrisk strömkälla, och deras energiförbrukning beror på motorns nominella effekt och drifttiden.
5. Miljöhänsyn:
– Hydraulcylindrar: Hydraulsystem använder vanligtvis hydraulvätskor som kan orsaka miljöproblem om de läcker eller inte kasseras på rätt sätt. Valet av hydraulvätska kan påverka faktorer som biologisk nedbrytbarhet, toxicitet och potentiella miljörisker. Korrekt underhåll och läckageförebyggande åtgärder är avgörande för att minimera miljöpåverkan från hydraulsystem.
– Elmotorer: Elmotorer anses generellt vara mer miljövänliga eftersom de inte kräver hydraulvätskor. Miljöpåverkan från elmotorer beror dock på vilken elkälla som används för att driva dem. När de drivs av förnybara energikällor, såsom sol eller vind, kan elmotorer erbjuda en grönare lösning jämfört med hydrauliska system.
6. Lämplighet för tillämpning:
– Hydraulcylindrar: Hydraulcylindrar används ofta i applikationer som kräver hög kraftuttag, exakt kontroll och hållbarhet. De används ofta inom industrier som bygg, tillverkning, gruvdrift och flygindustrin. Hydraulsystem är väl lämpade för tunga applikationer, såsom att lyfta tunga föremål, använda tunga maskiner eller styra storskaliga rörelser.
– Elmotorer: Elmotorer används ofta inom olika industrier och tillämpningar som kräver rotationsrörelse, hastighetsreglering och exakt positionering. De finns ofta inom apparater, transport, robotteknik, VVS-system och automation. Elmotorer är lämpliga för tillämpningar som involverar kontinuerlig rotationsrörelse, såsom att driva transportband, roterande maskiner eller driva fordon. Sammanfattningsvis har hydraulcylindrar och elmotorer olika arbetsprinciper, kraftkapacitet, styregenskaper, effektivitetsnivåer och tillämpningslämplighet. Hydraulcylindrar utmärker sig genom att ge hög kraftuttag, exakt styrning och hållbarhet, vilket gör dem idealiska för tunga tillämpningar. Elmotorer, å andra sidan, erbjuder höga rotationshastigheter, exakt hastighetsreglering och används ofta för tillämpningar som involverar kontinuerlig rotationsrörelse. Valet mellan hydraulcylindrar och elmotorer beror på tillämpningens specifika krav, inklusive typ av rörelse, kraftuttag, styrprecision och miljöhänsyn.

Customization of Hydraulic Cylinders for Marine and Offshore Applications
Yes, hydraulic cylinders can be customized for use in marine and offshore applications. These environments present unique challenges, such as exposure to corrosive saltwater, high humidity, and extreme operating conditions. Customization allows hydraulic cylinders to meet the specific requirements and withstand the harsh conditions encountered in marine and offshore settings. Let’s delve into the details of how hydraulic cylinders can be customized for marine and offshore applications:
- Corrosion Resistance: Marine and offshore environments expose hydraulic cylinders to corrosive elements, such as saltwater. To mitigate corrosion, hydraulic cylinders can be customized with materials and surface treatments that provide enhanced corrosion resistance. For example, cylinders can be constructed from stainless steel or coated with protective layers like chrome plating or specialized coatings to withstand the corrosive effects of saltwater.
- Sealing and Environmental Protection: Hydraulic cylinders for marine and offshore applications require robust sealing systems to prevent water ingress and protect internal components. Customized sealing solutions, such as high-quality seals, wipers, and gaskets, can be employed to ensure effective sealing and resistance to water, debris, and contaminants. Additionally, hydraulic cylinders can be designed with protective features like bellows or boots to shield vulnerable areas from environmental elements.
- High-Pressure and Shock Resistance: Marine and offshore operations may involve high-pressure hydraulic systems and encounters with dynamic loads or shocks. Customized hydraulic cylinders can be engineered to withstand these demanding conditions. They can be designed with reinforced construction, thicker walls, and specialized components to handle high-pressure applications and absorb shock loads, ensuring reliable performance and durability.
- Temperature and Fluid Compatibility: Marine and offshore applications can expose hydraulic cylinders to extreme temperature variations and specific fluid requirements. Customization allows the selection of materials, seals, and fluids compatible with the anticipated temperature range and the specific fluid being used. Hydraulic cylinders can be tailored to maintain optimal performance and reliability under challenging temperature conditions and with the designated fluid type.
- Mounting and Integration: Customized hydraulic cylinders can be designed to facilitate easy integration and mounting within marine and offshore machinery. Mounting options can be tailored to suit the available space and structural requirements of the equipment. Additionally, customized hydraulic cylinder designs can incorporate features for easy maintenance, accessibility, and connection to the hydraulic system, ensuring convenient installation and serviceability in marine and offshore applications.
In summary, hydraulic cylinders can be customized to meet the unique demands of marine and offshore applications. Customization enables the integration of corrosion-resistant materials, robust sealing systems, high-pressure and shock-resistant designs, temperature and fluid compatibility, as well as optimized mounting and integration features. By tailoring hydraulic cylinders to the specific requirements of marine and offshore environments, reliable performance, extended service life, and efficient operation can be achieved in these challenging operating conditions.

Can hydraulic cylinders be adapted for use in both industrial and mobile equipment?
Yes, hydraulic cylinders can be adapted for use in both industrial and mobile equipment. The versatility and adaptability of hydraulic systems make them suitable for a wide range of applications across various industries. Here’s a detailed explanation:
1. Industrial Equipment:
– Hydraulic cylinders are extensively used in industrial equipment such as manufacturing machinery, construction equipment, material handling systems, and heavy-duty machinery. They provide the necessary force and controlled movement for tasks such as lifting, pushing, pulling, and positioning heavy loads. Industrial hydraulic cylinders are typically designed for robustness, durability, and high load-bearing capacities to withstand the demanding environments and heavy-duty applications encountered in industries.
2. Mobile Equipment:
– Hydraulic cylinders are also widely adopted in mobile equipment, including agricultural machinery, mining equipment, forestry machinery, and transportation vehicles. These cylinders enable various functions such as tilting, lifting, steering, and stabilizing. Mobile hydraulic cylinders are designed to be compact, lightweight, and efficient to meet the specific requirements of mobile applications. They are often integrated into hydraulic systems that power multiple functions in a single machine.
3. Adaptability:
– One of the key advantages of hydraulic cylinders is their adaptability. They can be customized and configured to suit different operating conditions, equipment sizes, load capacities, and speed requirements. Hydraulic cylinder manufacturers offer a wide range of sizes, stroke lengths, mounting options, and rod configurations to accommodate diverse applications. This adaptability allows hydraulic cylinders to be utilized in both industrial and mobile equipment, serving various purposes across different sectors.
4. Mounting Options:
– Hydraulic cylinders can be adapted to different mounting arrangements to suit the specific requirements of industrial and mobile equipment. They can be mounted in various orientations, including vertical, horizontal, or at an angle. Different mounting options, such as flange mounts, trunnion mounts, and clevis mounts, provide flexibility in integrating hydraulic cylinders into different equipment designs.
5. Integration with Hydraulic Systems:
– Hydraulic cylinders are often part of a larger hydraulic system that includes components such as pumps, valves, hoses, and reservoirs. These systems can be tailored to meet the specific needs of both industrial and mobile equipment. The hydraulic system’s design and configuration can be adapted to provide the necessary flow rates, pressures, and control mechanisms required for optimal performance in the intended application.
6. Control and Automation:
– Hydraulic cylinders in both industrial and mobile equipment can be integrated with control systems and automation technologies. This allows for precise and automated control of the cylinder’s movement and function. Proportional control valves, sensors, and electronic controls can be incorporated to achieve accurate positioning, speed control, and synchronization of multiple hydraulic cylinders, enhancing overall equipment performance and productivity.
7. Säkerhetsaspekter:
– Hydraulic cylinders for both industrial and mobile equipment are designed with safety in mind. They often feature built-in safety mechanisms such as overload protection, pressure relief valves, and emergency stop systems to prevent accidents and equipment damage. Safety standards and regulations specific to each industry are taken into account during the design and adaptation of hydraulic cylinders for different applications.
Overall, hydraulic cylinders offer the adaptability and performance required for use in both industrial and mobile equipment. Their versatility, customizable features, mounting options, integration capabilities, and safety considerations make them suitable for a wide range of applications across diverse industries. Whether it’s heavy-duty industrial machinery or mobile equipment operating in challenging environments, hydraulic cylinders can be adapted to meet the specific needs and requirements of various equipment types.


editor by Dream 2024-04-23