Do you have a quality control system?

Yes, we have a strict quality control system from raw materials to finished products, implementing 6S and ERP management. We are ISO9001 and CE certified.

How do I choose the right cylinder?

You can provide specifications, drawings, sizes, or photographs. We can recommend regular models or design a cylinder according to your specific requirements.

What material is the cylinder tube made of?

The cylinder tube is made of honed steel, precision finished to extend seal life.

Premium D220-7/5 Excavator Big Arm Hydraulic Cylinder Assembly

Name: Premium D220-7/5 Excavator Big Arm Hydraulic Cylinder Assembly
Brand: Hebei Runhe Hydraulic Machinery Co., Ltd
SKU: 2242612875

Hebei, ChinaHebei Runhe Hydraulic Machinery Co., Ltd

US$120.00

1 Piece

Sample price:US$120.00/piece.Request sample

Product profile

Customization

Available

Certification

GS, RoHS

Pressure

Medium Pressure

Model NO.

RE-D220-7/5

Work Temperature

Normal Temperature

Acting Way

Single Acting

Working Method

Straight Trip

Adjusted Form

Switching Type

Structure

Piston Type

Material

Cast Iron

Customize

Yes

MOQ

1 Set

Apply

Excavator

Shelf Life

12 Months

Transport Package

Wooden Box

Specification

150*30*30cm

Trademark

RUNHE

Origin

China

HS Code

8412909090

Production Capacity

60000PCS/Year

Key features

Super Bearing Capacity: Withstands over 3% more load than peer standards for heavy-duty tasks.

Extended Service Life: Wear and corrosion resistance increased by 1.3 times with honing process.

Fast Response Time: Optimized design shortens response time to 0.5s for instant telescopic action.

Wide Adaptation: Compatible with over 95% of industrial equipment hydraulic systems.

Customizable Dimensions: Bore size 40-320mm, shaft 20-220mm, and stroke 30-14100mm are customizable.

Chrome Plated Rods: Precision machined, hardened, and chrome plated for maximum wear life.

ISO9001 & CE Certified: Strict quality control system from raw material to finished products.

Company profile

Importers and ExportersFast DeliveryLow MOQCustomization from Samples

Hebei Runhe Hydraulic Machinery Co., Ltd

Hebei, China

Business Type: Manufacturer/Factory, Trading Company, Group CorporationAverage Response Time: ≤3.03h

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier focused on hydraulic power machinery, components, pumps, vacuum equipment, mechanical parts, hardware, and technical services. It supports extensive customization and provides ODM and OEM services, but does not provide 3D software design, SDKs, or new products. Export orientation is strong, with 90% of sales from exports and self-operated import/export rights, while overseas service infrastructure is limited: no overseas agents, branches, warehouses, showrooms, or offline trade-show participation. Quality inspection procedures are documented, but certification-system status is NIL and sustainability controls show gaps. Production scale is reported as above the stated threshold, although detailed capacity evidence is limited.

Supplier typeThe supplier explicitly identifies as a professional technical supplier. Its stated business scope covers hydraulic power machinery and components, liquid-tight components and systems, pumps and vacuum equipment, mechanical parts, hardware products, and technical services; its primary export market is South America.

CertificationsThe supplier’s certification of management systems is recorded as NIL. This is explicit evidence that no management-system certification is reported in the provided information.

After-Sales capabilityThe supplier has no in-stock service capability, overseas warehouse, overseas showroom, overseas agent or branch, and offers overseas services in zero countries. Service management has written procedures but no records, indicating limited documented after-sales infrastructure.

R&D capabilityThe supplier has R&D capability and provides ODM services, but it does not provide 3D software design or SDKs and reported no new products during the past year. The evidence supports some product-development capability but also identifies clear limitations in software/tooling and recent innovation output.

Production capacityAnnual production output is reported as above the stated threshold, and finished-product inspections follow written instructions uniformly. However, the supplier has no in-stock capability, while outsourcing procedures and manufacturing-capacity contracts are unknown; therefore, production scale is indicated but operational depth is only partially evidenced.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, minor customization, and flexible customization. It also provides ODM and OEM services for well-known brands, directly supporting broad customization capability.

Product Q&A

Q:How do I determine the size if I have a sample?

Measure the outer diameter, length between pin holes (with rod pushed in), rod diameter, and pin diameter (usually 3/4 or 1 inch). This helps identify cylinder size, attachment type, and weight capacity.

Q:What are the ways to know what size to order?

1) Send a drawing. 2) Measure the sample. 3) Send a sample. 4) Check the chart ensuring retracted length matches. Order mainly by length, then match rod and bore sizes.

Q:What is the difference between double acting and single acting cylinders?

Double-acting cylinders have ports at both ends for fluid supply during retraction and extension. Single-acting cylinders have one port; fluid extends the rod, while an external force or gravity returns it.

Q:What colors are available for the cylinder?

Red and black are standard. Other colors are available as required.

Q:Can we design our own package or print our own logo?

Yes! Package and logo will be made according to your specific requirements.