Epiroc EC Series Main Cylinder Body For Hydraulic Hammer Pressure System Rebuild

Product Introduction

The Epiroc EC Series Main Cylinder Body For Hydraulic Hammer Pressure System Rebuild is a key structural and hydraulic core part used in excavator-mounted hydraulic breaker hammers. It is suitable for Epiroc EC Series hydraulic breakers, including common models such as EC40T, EC60T, EC70T, EC80T, EC90T, EC100T, EC120T, EC135T, EC140T, EC150T, EC155T, EC165T, and EC180T.

The cylinder body is one of the most important components inside a hydraulic hammer. It provides the working chamber for the piston, supports hydraulic oil pressure, controls the movement space of the impact system, and works together with the piston, seal kit, back head, front head, accumulator, diaphragm, and chisel. When the cylinder body is in good condition, the breaker can maintain stable impact force and efficient energy transfer.

If the hydraulic breaker cylinder is scratched, worn, cracked, deformed, or damaged on the sealing surface, the hammer may suffer from weak impact, oil leakage, unstable frequency, piston seizure, abnormal heat, seal damage, or reduced breaking efficiency. In serious cases, a damaged cylinder body may cause complete hydraulic hammer failure.

This product is an aftermarket replacement cylinder body compatible with Epiroc EC Series hydraulic breakers. The Epiroc name and EC model references are used only for compatibility identification.

Material

The Epiroc EC Series hydraulic breaker cylinder body is commonly produced from selected alloy steel or customer-specified material according to the breaker model, working condition, and repair requirement. A cylinder body must have strong structural strength, good wear resistance, stable hardness, and excellent machining accuracy.

Because the piston moves rapidly inside the cylinder under high-pressure hydraulic oil, the inner bore quality is extremely important. The material must resist impact stress, hydraulic pressure, friction, and long-term fatigue. If the cylinder material is unstable or the bore surface is not properly finished, it may damage the piston and seal kit quickly.

Heat treatment, precision boring, honing, grinding, and surface finishing are important processes for cylinder production. These processes help improve dimensional accuracy, oil sealing performance, surface smoothness, and service stability. A well-produced cylinder body can help the hydraulic breaker maintain better pressure control and impact output.

Product Features

The main feature of the Epiroc EC Series cylinder body is its role in supporting the hydraulic pressure system. It is not only a structural housing, but also a precision hydraulic component. The piston must move inside the cylinder smoothly, and the oil passages must support correct pressure flow during breaker operation.

Accurate internal dimensions help reduce friction between the piston and cylinder. Proper surface finish helps protect the seal kit and reduce oil leakage risk. Correct machining tolerance helps maintain stable working frequency and impact energy. These details are especially important for hydraulic hammers used in demolition, quarrying, mining, road repair, trenching, and concrete breaking.

The cylinder body also affects the service life of other breaker parts. If the cylinder is damaged, even a new piston or seal kit may fail quickly. For this reason, repair workshops usually inspect the cylinder bore, sealing surface, oil passage, and fitting position during hydraulic breaker rebuild work.

This cylinder body can be supplied for repair, rebuild, replacement, and spare parts stock. It can also be ordered together with pistons, seal kits, diaphragms, chisels, bushings, front heads, back heads, rod pins, through bolts, side bolts, buffers, and wear plates.

Main Advantages

The main advantage of this Epiroc EC Series main cylinder body is its ability to restore the hydraulic hammer pressure system. When the cylinder body is correctly matched and properly machined, it helps the piston move smoothly, supports pressure stability, reduces internal oil loss, and improves impact energy transfer.

For demolition contractors, a stable cylinder body helps the breaker deliver reliable impact on reinforced concrete, foundations, bridge structures, and road surfaces. For quarry and mining customers, the cylinder must withstand continuous pressure changes and strong impact cycles during hard rock breaking and secondary crushing.

For repair workshops and spare parts distributors, the cylinder body is an important high-value replacement part. Supplying the correct cylinder can help customers complete hydraulic breaker rebuild projects more efficiently and reduce the risk of repeated repair.

Replacing a damaged cylinder body in time can also protect related parts. If a scratched or worn cylinder continues working, it may damage the piston, seal kit, diaphragm, accumulator system, and front head guide system. Timely replacement can reduce total maintenance cost and improve long-term breaker reliability.

Why Choose Us

Customers choose us because we focus on hydraulic breaker aftermarket parts and model matching support. We supply cylinder bodies, pistons, seal kits, diaphragms, chisels, inner bushes, outer bushes, front heads, back heads, rod pins, through bolts, side bolts, buffers, wear plates, and other hydraulic breaker repair components.

For Epiroc EC Series cylinder bodies, we can help customers confirm the correct model before production or shipment. If the customer is not sure about the cylinder specification, they can provide the breaker model, nameplate photo, old cylinder dimensions, piston size, photos, drawings, samples, or part numbers. We can help check the matching details to reduce wrong orders.

We support hydraulic breaker repair workshops, machinery parts distributors, equipment rental companies, demolition contractors, quarry operators, mining service suppliers, and construction equipment maintenance teams. We can provide flexible support for single replacement orders, rebuild projects, and mixed spare parts orders.

Customization is also available, including material selection, machining size, hardness requirement, surface treatment, marking, neutral packaging, customer labels, and export packaging.

Applications

The Epiroc EC Series Cylinder Body is widely used in:

• Hydraulic hammer pressure system repair

• Excavator breaker cylinder replacement

• Hydraulic breaker rebuild projects

• Piston and seal kit matching repair

• Demolition hammer service

• Quarry and mining breaker maintenance

• Road construction breaker repair

• Concrete breaking equipment maintenance

• Hydraulic breaker spare parts stock

Parameter Table

FAQ

Q1: Is this cylinder body an original Epiroc part?
No. This is an aftermarket replacement cylinder body compatible with Epiroc EC Series hydraulic breakers. The Epiroc name and model references are used only for compatibility identification.

Q2: What is the function of the hydraulic breaker cylinder body?
The cylinder body provides the working chamber for the piston, supports hydraulic oil pressure, and helps transfer impact energy through the piston and chisel system.

Q3: When should I replace the cylinder body?
The cylinder should be replaced or repaired when it has deep scratches, cracks, serious wear, sealing surface damage, oil leakage, piston seizure, or pressure loss.

Q4: What problems can a damaged cylinder cause?
A damaged cylinder may cause weak impact, oil leakage, seal kit failure, piston wear, unstable frequency, abnormal heat, and complete breaker failure.

Q5: How can I confirm the correct cylinder model?
You can provide the breaker model, nameplate photo, old cylinder dimensions, piston size, photos, drawings, samples, or part numbers. We can help confirm the correct item before production or shipment.

Q6: Can I order the cylinder with matching parts?
Yes. The cylinder body can be supplied together with pistons, seal kits, diaphragms, chisels, bushings, front heads, back heads, rod pins, through bolts, side bolts, buffers, and wear plates.