Raydafon is a China-based factory-direct manufacturer and supplier of boom aerial work vehicle upper arm hydraulic cylinders. This upper arm cylinder drives the boom platform on aerial work vehicles used for power repair, municipal construction, billboard installation and high-altitude maintenance. Standard model GTHZ210C-620500-000 delivers up to 2000 kN thrust with a patented dual-piston design, 23 MPa working pressure, Φ110 mm bore, Φ75 mm rod and 815 mm stroke. The special alloy steel body is forged and heat treated six times for hardness 40% higher than ordinary steel, and a quadruple composite sealing system handles rain, dust, wind and coastal salt spray. Modular design reduces volume by 25% and weight by 18% versus comparable products. Custom bore, stroke, installation distance, port position and private label are supported. Send your drawing number, required quantity and destination port to request a quotation.
Aerial work vehicles carry workers to high positions for power repair, street light replacement, billboard installation and building maintenance. The upper arm cylinder is the core hydraulic component that raises and holds the platform. If it loses thrust, drifts under load or leaks oil, the whole vehicle becomes unreliable in high-altitude work.
Raydafon builds this boom aerial work vehicle upper arm hydraulic cylinder for these conditions. A patented dual-piston design reaches up to 2000 kN thrust and can steadily lift the work platform to 50 m, with positioning error controlled within ±3 cm. The cylinder body uses special alloy steel, forged and heat treated six times, reaching hardness 40% higher than ordinary steel. A quadruple composite sealing structure resists heavy rain, dust, strong wind and coastal salt spray, and has been verified in continuous coastal use for 3 years without leakage.
For buyers comparing suppliers, Raydafon offers factory-direct pricing, OEM production and stable batch quality. If you also source lower arm cylinders or related aerial work vehicle hydraulic components, review the full Aerial Work Vehicle Hydraulic Cylinders category and the Boom Aerial Work Vehicle Lower Arm Hydraulic Cylinder page.
The standard upper arm cylinder below covers common aerial work vehicle and aerial platform applications. If your equipment uses a different mounting pattern, send the OEM drawing number or a physical sample for reverse engineering and custom production.
| Cylinder Name | Drawing Number | Bore Diameter D | Rod Diameter d | Stroke S | Installation Distance L | Working Pressure | Interface M | Weight |
|---|---|---|---|---|---|---|---|---|
| Upper arm cylinder | GTHZ210C-620500-000 | Φ110 mm | Φ75 mm | 815 mm | 1433 mm | 23 MPa | 2-Φ9 | 100 kg |
Need a different bore, stroke, installation distance or port position? Raydafon can produce a custom upper arm hydraulic cylinder against your drawing. For related mobile equipment cylinders, see the Mobile Crane Hydraulic Cylinders category.
Patented dual-piston design reaches up to 2000 kN thrust. Lifts the platform to 50 m with positioning error controlled within ±3 cm, supporting accurate high-altitude wiring and maintenance.
Special alloy steel body, forged and heat treated six times, hardness 40% higher than ordinary steel. Quadruple composite sealing handles heavy rain, dust, strong wind and coastal salt spray.
Continuous 3-year operation in coastal salt spray environment without leakage. During typhoon season, a municipal company used this cylinder throughout operations and maintained stable operation.
Volume reduced 25% and weight reduced 18% versus comparable products. Fits different aerial work vehicle types and reduces load on the boom structure.
Quick-install interface design cuts installation time by half. Ordinary technicians can complete replacement in about half an hour following the instructions.
Custom bore, rod, stroke, installation distance, oil port position, private label packaging and bulk order production for different aerial work vehicle types.
The cylinder outputs 1800 kN thrust to lift the work platform to 30 m, with positioning error within ±2 cm. Even in level 5 gale conditions, the built-in stabilization system adjusts thrust in real time to keep the platform stable for line connection and equipment replacement.
Modular design fits different work vehicle types, and the oil port position can be flexibly adjusted. In a road reconstruction project, a single work vehicle completed replacement of 20 street lights in one day, with 40% efficiency gain over previous methods.
Stable thrust and accurate positioning support window cleaning, facade repair and sign installation at height. Quadruple sealing resists rain, dust and wind during outdoor work.
Aerial platform builders, repair workshops and aftermarket suppliers can order standard models or custom upper arm cylinders with private label packaging. If you also handle forklift hydraulic systems, see the Forklift Hydraulic Cylinder range.
Special alloy steel body, six times forging and heat treatment, hardness 40% higher than ordinary steel. Material records can be provided with bulk shipments.
Each cylinder is checked for leakage, stroke smoothness and port fitting before packing. Thrust performance is verified against rated pressure.
Bore, rod, stroke, installation distance and port dimensions are recorded against the ordered drawing or customer sample.
Cylinders are packed with anti-rust oil and protective end caps. Bulk orders can be palletized and strapped for sea freight, air freight or express delivery.
Provide equipment type, drawing number, bore, rod, stroke, installation distance, port size, quantity and destination port.
Raydafon checks whether model GTHZ210C-620500-000 or a custom upper arm cylinder fits your equipment.
For OEM projects, Raydafon reverse-engineers the sample and confirms dimensions before bulk production.
After drawing approval, Raydafon provides an FOB Ningbo quotation, production schedule and packing details.
A boom aerial work vehicle upper arm hydraulic cylinder is a hydraulic actuator that drives the upper boom of an aerial work vehicle or aerial platform. It lifts and positions the work platform so workers can safely carry out power repair, municipal construction, billboard installation and other high-altitude tasks. It is one of the core hydraulic components of the boom lift system.
Raydafon produces standard model GTHZ210C-620500-000 with Φ110 mm bore, Φ75 mm rod, 815 mm stroke, 1433 mm installation distance, 23 MPa working pressure, 2-Φ9 port and 100 kg weight. Custom bore, rod, stroke, installation distance and port position are available against OEM drawings or physical samples.
The patented dual-piston design reaches up to 2000 kN maximum thrust and can steadily lift the work platform to 50 m. In power system maintenance, the cylinder outputs a strong thrust of 1800 kN to lift the platform to 30 m, with positioning error controlled within ±2 cm, and maintains stability in level 5 gale conditions.
The cylinder body is made of special alloy steel, forged and heat treated six times, with hardness 40% higher than ordinary steel. A quadruple composite sealing structure resists heavy rain, dust, strong wind and coastal salt spray. The cylinder has been used continuously for 3 years in coastal salt spray environments without leakage.
Yes. Raydafon supports OEM production from customer drawings or physical samples. Custom bore, rod, stroke, installation distance, oil port position, private label packaging and bulk order production are available for different aerial work vehicle types.
Send the drawing number or existing sample details, bore diameter, rod diameter, stroke, installation distance, working pressure, port size, order quantity and destination port. Raydafon will reply with an FOB Ningbo quotation and lead time.
Use the inquiry form on this page or contact Raydafon by phone, email or WhatsApp. Include the required model, drawing number, quantity and application. The sales team will confirm sample availability, bulk production schedule and packing details.
Send your drawing number, bore/rod/stroke requirement, working pressure, port size, order quantity and destination port. Raydafon will confirm the standard model or design a custom upper arm hydraulic cylinder, then provide an FOB Ningbo quotation with lead time and packing details.
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Luotuo Industrial Area, Zhenhai District, Ningbo City, China
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Luotuo Industrial Area, Zhenhai District, Ningbo City, China
