Cilindri saldati a foro passante WP-3000PSI: Attuazione idraulica compatta con perno passante

Through-hole rod-end welded hydraulic cylinders engineered for tight-envelope mounting at a consistent 3000 PSI working pressure.

WP3015XX - WP3040XX  |  Bore 1.5" to 4"  |  Stroke 4" to 72"

The welded through hole hydraulic cylinder WP-3000PSI targets equipment designers who do not have the packaging room for a clevis or cross-tube mount. Every welded through hole hydraulic cylinder in the WP-3000PSI series carries a through-pin rod eye and a cross-tube cap end, so the envelope footprint stays narrow while still delivering 3000 PSI working pressure. Bore sizes run from 1.5" to 4", stroke lengths from 4" all the way to 72", and the WP-3000PSI welded cylinder has been specified by trailer OEMs, dump body builders, and attachment fabricators who simply cannot fit a wider welded tee part.

What separates the EVER POWER welded through hole hydraulic cylinder from a generic import is the tightness of the hole-to-hole centerline on the rod end. We hold that critical dimension to ±1/8" across every WP-3000PSI welded cylinder off the Hangzhou production floor, so fleet buyers swapping worn units into legacy brackets do not end up re-drilling pin holes in the field. Over thirty export markets have validated that tolerance discipline by reordering the welded through hole hydraulic cylinder year after year.

Why Choose EVER POWER WP-3000PSI?

The appeal of a welded through hole hydraulic cylinder is straightforward — compact envelope, direct pin engagement, high-fatigue welded construction. What separates a well-built WP-3000PSI welded cylinder from the rest of the category shows up in the details. These six engineering decisions are why EVER POWER buyers keep the welded through hole hydraulic cylinder on their reorder list.

Principio di funzionamento e costruzione

A welded through hole hydraulic cylinder operates on the same double-acting circuit shared across the welded family, but its distinguishing feature is the rod end — a single through-drilled pin eye with a bronze bushing, instead of a two-lug clevis yoke. That geometry cuts installation width by roughly 30% against a comparable welded clevis, which is precisely why the WP-3000PSI welded cylinder has displaced clevis parts on space-limited dump body builds and compact attachment machines.

Material choices follow the same philosophy as the rest of the EVER POWER range. Barrels are cold-drawn seamless carbon steel tube, honed to mirror finish. Rods are induction-hardened and hard chromed to a minimum 0.03 mm plating thickness. End caps are welded with qualified welding procedure specifications on robotised stations. Seal stacks default to a Nitrile primary with a polyurethane buffer, giving every WP-3000PSI welded cylinder a reliable service temperature range of −30°C to +100°C. Viton seal options are available for hydraulic-fluid temperature excursions.

Rod straightness on every welded through hole hydraulic cylinder is verified against a 0.2 mm/m limit before assembly, and final rod-end hole concentricity to the rod centerline is held to ±0.1 mm. Those numbers matter more on a through-pin design than on a clevis because a cocked pin hole shows up immediately as binding. Each WP-3000PSI welded cylinder leaves Hangzhou with rod anti-corrosion plugs installed in both ports to protect the internals during ocean freight.

Specifiche standard

Retracted and stroke tolerance ±1/8". Column load calculated with safety factor of 2, pin-to-pin mounting. Extended working pressure de-rated on long-stroke SKUs — consult the datasheet. NPT ports available on request.

Typical Applications of the WP-3000PSI

The welded through hole hydraulic cylinder earns its place on equipment where space is the primary constraint. The WP-3000PSI series has been specified on flatbed trailer tail-lifts built in California, on grain-trailer tipping rams operated across Australian wheat country, on scissor-lift platforms stamped out of Romanian workshops, and on refuse packer plates running pick-up routes in Italy. The welded through hole hydraulic cylinder handles each of those jobs because the envelope fits where a fatter cylinder will not, and the WP-3000PSI welded cylinder still delivers the full 3000 PSI working capability.

Caso di studio del cliente

Cosa dicono i nostri clienti

All'interno del nostro stabilimento di Hangzhou

EVER POWER Hydraulic Machinery operates an integrated production facility in Binjiang District of Hangzhou, Zhejiang Province, China. The plant covers hydraulic cylinder design, CNC machining, robotic welding, rod chroming, assembly, and full QC testing under one roof. Our Hangzhou engineering team has been designing the welded through hole hydraulic cylinder line since 2002, with current annual capacity of 120,000 cylinders across the full catalog including the WP-3000PSI platform.

Our quality system is ISO 9001:2015 certified. Every welded through hole hydraulic cylinder that leaves the production floor has a traceable serial number linked to raw material certificates, weld records, pressure test data, and final dimensional inspection. We hold CE documentation for European export, and routinely supply buyers in the United States, Canada, Australia, Germany, France, Brazil, Mexico, and Southeast Asia. Third-party inspection by SGS, BV, TUV, or the buyer's own engineer is welcome at any stage.

Programma di qualità e collaudo

Every WP-3000PSI undergoes a multi-stage test program before leaving Hangzhou. Raw tubing is checked for OD/ID dimensional tolerance and straightness on receipt. After honing, each barrel is measured for bore finish (target 0.4-0.8 μm Ra) and cylindricity. Chrome-plated rods are measured for plating thickness with an eddy current gauge and inspected for surface pits under 10x magnification. The final assembled welded through hole hydraulic cylinder is pneumatically leak-tested at working pressure, and a sampling ratio is hydraulically proof-tested to 1.5x rated pressure.

Il nostro flusso di produzione in 10 fasi

Sourcing a WP-3000PSI Directly from Hangzhou, China

La provincia di Zhejiang è un importante centro di produzione di cilindri idraulici in Cina e il nostro stabilimento di Hangzhou si trova proprio al centro di questo polo produttivo. Spediamo direttamente da Hangzhou, in Cina, al porto di Ningbo e da lì verso qualsiasi porto marittimo del mondo con partenze settimanali. La vicinanza del nostro stabilimento al porto di Ningbo garantisce agli acquirenti un corridoio logistico efficiente, con il carico dei container spesso entro sette giorni lavorativi dall'approvazione del collaudo finale.

Overseas buyers reach our production floor through Ningbo Port for sea freight, or Hangzhou Xiaoshan International Airport for air samples. Any buyer who needs to receive a WP-3000PSI in Shanghai, Guangzhou, Chongqing, or any industrial hub across China can expect inland dispatch within three working days of approval thanks to the Hangzhou-Ningbo freight corridor and Yangtze River Delta logistics network.

Termini dell'ordine e pagamento

Standard payment terms are 30% TT deposit with balance against copy of bill of lading, or LC at sight for orders above USD 50,000. Trade Assurance orders through Alibaba are accepted up to USD 100,000. We support FOB Ningbo, CIF to most major ports, and DDP for select European and North American destinations. All welded through hole hydraulic cylinder shipments leave our Hangzhou plant in fumigated wood crates with port-protection caps on ports and desiccant inside the cylinder bore.

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