Import Api 8a/8c Cdzh Type Side Door Drilling Elevator — Buy in wholesale FOB from Supplier in China

The CDZH type side door drilling elevator from Dongying Lake Petroleum Technology employs a hydraulic actuation system with double-valve structure for handling drill pipe, drill collars, casing and tubing through interchangeable bushings. Rated capacities of 350 and 500 short tons cover the upper load range of API 8A/8C hoisting equipment, with remote control capability that reduces manual operation hazards on the drill floor. The hydraulic system replaces manual latch operation, lowering worker fatigue and enabling safer pipe handling during tripping and casing runs. Construction is specified to API Spec 8A/8C, with carbon steel casting as the primary processing method and one-year warranty coverage.

The double-valve hydraulic configuration uses pressurised fluid to actuate door closure and latch engagement, with redundancy that maintains load security if a single valve path is compromised. Interchangeable bushings adapt the same elevator body to multiple pipe diameters and types, a versatility that reduces inventory requirements compared to dedicated single-size elevators cast or forged for fixed dimensions. Remote control functionality suggests integration with rig automation systems, though control protocol compatibility (analog, digital, or proprietary) requires supplier confirmation. Cast carbon steel construction differs from forged alloy approaches, with typical grain structure and porosity controlled through foundry practice and subsequent heat treatment to meet API mechanical property requirements.

Target operators include drilling contractors running automated or semi-automated rigs where hydraulic elevator integration supports reduced crew exposure and faster connection times. The 45-day production time and 500 set per month capacity indicate batch foundry scheduling with machining and hydraulic system assembly. T/T, L/C and Western Union payment options are accepted. Standard export packaging applies from China main port. Buyers should assess hydraulic system pressure ratings, control interface specifications, and bushing inventory for their specific pipe program before committing to the CDZH-350 or CDZH-500 model.

Dongying Lake Petroleum Technology Co., Ltd. operates from Huanhe Road in Dongying, Shandong Province, an industrial city with concentration in petroleum machinery manufacturing. The supplier carries imported tier classification with harbor trust tier, indicating basic verification without extended due diligence completion. Response rate is recorded at 0.00% with zero average response hours, which may reflect inactive account management or alternative communication channels outside the platform. No information is provided about manufacturing floor space, workforce size, annual throughput in monetary terms, or client references.

This listing focuses on the CDZH hydraulic elevator line with two models, emphasising automation compatibility and multi-purpose bushing interchangeability. After-sales service is explicitly excluded for overseas locations. The one-year warranty applies to manufacturing defects under normal operating conditions. Buyers should independently verify foundry certifications, quality management system registration (ISO 9001 or API Q1 if claimed), and whether the hydraulic system components are sourced from specified sub-suppliers or manufactured in-house. The Shandong location offers proximity to Qingdao and Tianjin ports for export logistics.