Sealing Kits

Seal kits for tail gate systems – Sealing of hydraulic cylinders and assemblies

Hydraulic cylinders, valves and aggregates of a tail lift operate under fluctuating pressures and considerable mechanical load. Sealing kits maintain system pressure, prevent leakage and protect components from wear. This category includes seal kits designed for various hydraulic assemblies used in modern tail gate systems. SULEJ Ladebordwand uses certified components precisely matched to cylinders and valve units to ensure reliable function in daily operation.

Sealing and guiding elements – Function within the hydraulic drive

Sealing elements and guiding components are used in cylinders, valves and additional assemblies of a lift gate. They secure hydraulic pressure, reduce friction on moving surfaces and prevent dirt or moisture from entering the system. Intact sealing elements enable smooth movement cycles and stable transfer of force within the hydraulic system.

Materials and configurations – Sealing kits for different operating conditions

Sealing kits are available in multiple material configurations to meet the requirements of different cylinder and valve assemblies. In addition to elastomers, commonly used materials include:

• Polyurethane (PU): Highly wear-resistant and pressure-stable, ideal for heavy-duty hydraulic cylinders
• Nitrile rubber (NBR): Oil- and grease-resistant, widely used in hydraulic applications
• Polytetrafluoroethylene (PTFE): Low-friction and temperature-resistant, suitable for dynamic sealing points

Each tail lift assembly requires a precisely matched sealing kit. Only a correctly fitted configuration ensures complete sealing and consistent movement guidance within the hydraulic drive.

Maintenance and replacement – Detecting wear on seal kits

Routine inspection of cylinders and valves allows early detection of seal wear. Common indicators include oil moisture on components, reduced performance of the tail gate or jerky movement during lifting or lowering. Replacing a worn sealing kit prevents consequential damage to hydraulic pumps, valves or cylinders. High-quality hydraulic oil supports the lifetime of sealing elements, as inferior fluids may damage materials and accelerate aging.

Manufacturing precision and material quality – Components for stable hydraulic movement

Sealing kits must meet strict requirements regarding material durability, dimensional accuracy and surface quality. Precisely manufactured sealing elements with burr-free contact surfaces ensure stable pressure build-up and low friction during operation. They are safety-critical components of hydraulic assemblies in tail lift systems. In lift gate applications, resistance to changing load cycles and temperature fluctuations is essential. SULEJ Ladebordwand uses components tested for durability, thermal behavior and sealing performance to ensure long-term operational reliability.

Application and advantages – Sealing kits for consistent hydraulic performance

• Secure sealing to reduce hydraulic oil loss
• Stable hydraulic performance during lifting, lowering and closing movements
• Protection of hydraulic assemblies from contamination and abrasive particles
• Extended service life of cylinders, valves and pumps through precisely matched components

The sealing kits offered here are compatible with common tail lift systems and provide precise sealing performance and long-term operational reliability.

Frequently asked questions about sealing kits for lift gate and tail gate systems (FAQ)

When should a sealing kit be replaced?

A sealing kit must be replaced when oil moisture becomes visible, lifting performance decreases or movement is no longer smooth. Regular inspections help detect wear early.

Can I replace a sealing kit myself?

Replacement is technically possible but requires appropriate tools and experience with hydraulic cylinders. Professional workshops ensure correct assembly and full sealing of cylinders and valve units.

Which sealing kit fits my tail lift?

Selection depends on manufacturer, model and the specific cylinder or valve type installed. Type plates and serial numbers normally provide all required identification details.

How can I identify a high-quality seal kit?

High-quality sealing kits feature precisely manufactured sealing elements, burr-free surfaces and certified materials. These characteristics ensure stable sealing performance and reliable hydraulic operation.

What is included in a complete seal kit?

A complete seal kit includes all sealing, wiping and guiding elements required for a specific hydraulic assembly. This ensures correct servicing and full sealing of the cylinder or valve.