Excavator
Drive System
In construction equipment, drive components perform a vital function, transferring power from the engine to the final drive, which supplies torque to the equipment’s tracks or wheels. The drive system consists of an engine and a network of components. Engines can have a variety of configurations and sealing solutions are designed to meet the unique requirements of each application.
Heavy-duty rotary seals keep oil and grease within the system, while high-performance static seals and custom-molded keep the excavator operating efficiently. These prevent contamination from mud, dirt and water, protecting components from abrasion and keeping lubricants inside the system.
- Engine: Radial oil seals, Turcon® Varilip® PDR, GAMMA Seal, Turcon® Glyd Ring®, O-Rings, engineered molded parts
- Emission Controls: Wills Rings® C
- Fuel System: O-Rings
- Fan Drives: Custom PTFE components, Turcon® Variseal® W
- Front & Rear Axle: Cassette seals, Orkot® Bearings, radial oil seals, V-Ring, Mechanical Face Seals, GAMMA Seal, Turcon® Roto L, Turcon® Varilip® PDR
- Final Drives: Cassette seals, Mechanical Face Seals
- Idlers: Mechanical Face Seals
- Hydrostatic Drive: Turcon® Roto Glyd Ring®, radial oil seals
- Clutch: O-Rings, Back-up Ring, Dualseal, Turcon® T-Seal
- Gearbox: Radial oil seals, custom PTFE components
- Transmission: Kantseal/square rings, O-Rings, Back-up Ring, radial oil seals, Zurcon® Buffer Seal, Dualseal
- Swivel Joint: Turcon® Roto Glyd Ring®
Cylinders & Actuators
Within hydraulic and pneumatic systems, cylinders and actuators play a critical part in excavator operations, and for these to function effectively, seals within the systems must help achieve maximum performance over a long operating cycle without leakage.
- Boom, Stick, and Bucket Cylinders: Zurcon® U-Cup RU9, Zurcon® Buffer Seal LM, Glyd Ring® P, Zurcon® Glyd Ring® D, Zurcon® Scraper DA22 and Zurcon® Scraper DA24, Slydring® wear rings, O-Rings, Dualseal, Slipper Seal, Turcon® Stepseal® V LM, Zurcon® Rimseal IM, Turcon® Glyd Ring® T
Valves & Pumps
In hydraulic systems, valves direct and control flow generated by pumps. The resulting force operates the hydraulic components within the excavator itself, as well as any cylinders on attachments.
To maximize efficiency for the operator, valves and pumps must run precisely to exclude external media and extend time between planned maintenance.
- Directional Control Valve: Zurcon® Scraper DA17
- Pneumatic Valve: Zurcon® Scraper DA22
- Cartridge Valve: Zurcon® Dualseal
- Control Valve: O-Ring with Back-up Ring and Dualseal, Stepseal®, Slipper Seal, Polyurethane O-Ring
- Piston Pump: Radial oil seals
Implements & Attachments
The implements and attachments on excavators enable them to perform a wide range of functions, from digging and earthmoving to breaking rocks, compacting ground material and demolishing buildings.
Given the proximity these attachments can have to the ground, static and dynamic seals are vital in keeping dirt and contamination out of the system. Linear and rotary seals allow for the smooth and quiet operation of the hydraulic equipment while preventing leakage into the environment.
- Blade and swing cylinders: HiMod® and Orkot® Bearings, Zurcon® Dualseal, Zurcon® Buffer Seal LM, Zurcon® U-Cup RU9, Zurcon® L-Cup® , Zurcon® Scraper DA24, Zurcon® Wynseal, Zurcon® Glyd Ring® P
- Demolition equipment, e.g. hydraulic hammer: Zurcon® U-Cup RU9, Scraper ASW, Zurcon® Rimseal IM, Zurcon® Dualseal