About Drilltech Manufacturing Co., Ltd. - Drilling Machines & Tools Supplier in China

Drilltech Manufacturing Co., Ltd. is based in China and lists five active products. The catalogue includes blowout preventer (BOP) components such as a 13 5/8‑inch 5000 psi double‑ram BOP and a 13 5/8‑inch 5000 psi annular BOP. Additional items are a 49 ½‑inch 500 psi diverter, a 29 ½‑inch 500 psi offshore diverter, and a generic BOP entry. All products fall under the drilling machines & tools and heavy machinery categories that serve oil‑field drilling operations. The listed pressure ratings range from 500 psi to 5,000 psi, and the dimensions are expressed in inches, reflecting standard offshore equipment sizing.

In the oil‑field sector, BOP components are typically manufactured to API specifications such as API 6A for wellhead equipment and API 16A for blowout preventers. Manufacturers usually employ high‑strength alloy steel and perform hydrostatic pressure tests at 1.5 times the rated pressure. Standard testing includes proof‑pressure certification, material certification (e.g., mill test reports), and functional leak‑rate testing. Export shipments are commonly packed in steel frames or wooden crates, sized to fit 20‑ft or 40‑ft containers. Buyers often require compliance documents, including API certification, ISO 9001 quality‑system certificates, and third‑party inspection reports. The five products listed by Drilltech therefore align with typical industry expectations for offshore drilling safety equipment.

Product Range and Specialties of Drilltech Manufacturing Co., Ltd.

Drilltech’s catalogue focuses on BOP hardware: a 13 5/8‑inch double‑ram unit, a matching annular unit, two diverters sized at 49 ½ inch and 29 ½ inch, and a generic BOP reference. In the global market these items are usually classified under API 16A Class A‑D ratings, with pressure classes ranging from 5 000 psi to 15 000 psi. Typical material grades are ASTM A105 carbon steel for body components and ASTM A335 P91 for high‑temperature sections, both requiring heat‑treatment to achieve minimum yield strengths of 380 MPa. Standard specifications also call for seal elements of elastomeric compounds rated for temperatures from - 30 °C to +150 °C, and ram or annular pistons with a minimum clear‑ance tolerance of ±0.1 mm. Buyers frequently compare bore‑diameter tolerances, ram closing forces (often expressed in kN), and the number of sealing elements when selecting a BOP system.

Trade and Export Information - Drilltech Manufacturing Co., Ltd.

China is a major exporter of drilling‑equipment components, with BOP hardware typically shipped to oil‑producing regions in the Middle East, North America, West Africa and Southeast Asia. Export logistics favor 20‑ft or 40‑ft containers equipped with internal bracing to prevent movement of heavy steel units; a 13 5/8‑inch BOP module can weigh between 1 200 kg and 1 800 kg, while a 49 ½‑inch diverter may exceed 3 000 kg. Common Incoterms used by Chinese manufacturers are FOB Shanghai or CIF Dubai, allowing buyers to arrange marine freight and insurance. Buyers usually request API 6A/16A certification, ISO 9001 or ISO 14001 compliance, and a third‑party inspection report such as SGS or Bureau Veritas before shipment. Export documentation often includes a commercial invoice, packing list, Certificate of Origin, and the relevant test certificates for pressure rating verification.

Sourcing from Drilltech Manufacturing Co., Ltd. - Buyer Guidance

When sourcing BOP components from Drilltech, request the latest API 16A test report that confirms the rated pressure and class, together with mill test reports for the steel grades used. Verify that the supplier can provide a functional leak‑rate test result performed at 1.5 × rated pressure, as this is a standard acceptance criterion in offshore contracts. Ask for dimensional drawings that show bore diameter, ram travel limits and seal seat tolerances to ensure compatibility with existing wellhead equipment. Typical minimum order quantities are one unit per model, but lead times for custom‑size diverters can range from 8 to 12 weeks depending on machining workload. Packaging should be confirmed as steel‑frame crates with internal padding, and buyers should specify the preferred Incoterm (e.g., FOB or CIF) to align with their logistics plan.

What pressure ratings are available for the 13 5/8‑inch BOP models?

Drilltech lists a 13 5/8‑inch double‑ram BOP and an annular BOP both rated at 5 000 psi. Buyers can request higher‑class versions (e.g., 10 000 psi) if the supplier offers API 16A Class B or C configurations.

Which industry standards apply to the diverter units?

The 49 ½‑inch and 29 ½‑inch diverters are typically built to API 6A and API 16A specifications, with material grades such as ASTM A105 for the body and ASTM A335 for high‑temperature sections.

What documentation should be obtained before purchasing?

Request the API 16A test certificate, mill test reports for the steel grades, a third‑party inspection report (e.g., SGS), and any ISO quality‑system certificates the supplier holds.

How are the BOP components packaged for export?

Standard practice is to place each unit in a reinforced steel frame crate with wooden dunnage, sized to fit a 20‑ft or 40‑ft container. The crate is sealed and labeled with handling instructions and HS‑code references.

What are typical lead times for the offshore diverter?

Lead time for a standard 49 ½‑inch 500 psi diverter is usually 8 weeks, while a custom‑size 29 ½‑inch offshore diverter can require 10‑12 weeks depending on machining and testing schedules.

Is a sample available for performance verification?

Suppliers often provide a non‑functional sample or a small‑scale test piece for dimensional inspection; functional testing samples are usually offered under a paid trial agreement.

Which Incoterms are commonly used for shipping these items?

FOB Shanghai and CIF Dubai are the most frequently used Incoterms for BOP hardware exported from China, allowing the buyer to arrange freight and insurance according to project requirements.

What packaging dimensions should a buyer expect for a 13 5/8‑inch BOP unit?

A 13 5/8‑inch double‑ram BOP typically occupies a crate measuring approximately 1.2 m × 0.8 m × 0.9 m and weighs around 1 500 kg, fitting comfortably in a standard 20‑ft container.