Does the company have a quality control system?

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

How should I choose the right cylinder model?

You can provide your specifications, drawings, sizes, or photographs. We will recommend the best regular model or design a custom cylinder to meet your needs.

What material is used for the cylinder tube?

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

Spare Parts Hydraulic Cylinder Dx420 Middle Arm for Excavator

Name: Spare Parts Hydraulic Cylinder Dx420 Middle Arm for Excavator
Brand: Hebei Runhe Hydraulic Machinery Co., Ltd
SKU: 2269102455

Hebei, ChinaHebei Runhe Hydraulic Machinery Co., Ltd

US$120.00

1 Piece

Product specifications

Dx420

Sample price:US$120.00/piece.Request sample

Product profile

Customization

Available

Certification

Pressure

Medium Pressure

Model NO.

Dx420

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.

Long Service Life: Honed inner wall and quality seals increase wear resistance by 1.3 times.

Fast Response: Optimized design shortens response time to 0.5s for improved efficiency.

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

Customizable Specifications: Bore, shaft, stroke, and mounting styles are fully customizable.

Quality Assurance: ISO9001 and CE certified with strict 6S and ERP quality control.

Full Compatibility: Fully compatible with major excavator brands for convenient maintenance.

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: ≤6.14h

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 correct cylinder size from a sample?

Measure the outer diameter of the cylinder, the length between pin holes (with the rod fully retracted), and the diameter of the push/pull rod and pins. This data helps identify the cylinder type and capacity.

Q:What are the methods to order the correct cylinder size?

You can send us a drawing, measure your sample, send a physical sample, or refer to our chart. Ensure the retracted length matches your requirements and the rod size is as close as possible.

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

Double-acting cylinders have ports at both ends for hydraulic fluid to extend and retract the rod. Single-acting cylinders have one port; hydraulic fluid extends the rod, while an external force or gravity returns it.

Q:What paint colors are available for the hydraulic cylinders?

Standard colors include Red, Black, Yellow, Blue, and Brown. Other colors are available upon request.

Q:Can we customize the packaging or print our logo?

Yes, we can manufacture packaging and print logos according to your specific requirements.