Vertical lifting system

Technical Specifications – Vertical Lifting Equipment Data

The following table summarizes key specifications for vertical lifting components manufactured by SJ Petro.

Elevator Specifications

Elevator Model	Pipe Size Range	Load Capacity (short tons)	API Standard	Weight (kg)
SJ/SP auxiliary	2-⅜″ – 13-⅜″	4.5–6 tonnes	API 8C	7–45
CD side‑door	2-⅜″ – 9-⅞″	100–250	API 8C	65–85
DDZ center latch	2-⅜″ – 7-⅝″	100–750	API 8C	70–240
TA tubing	2-⅜″ – 4-½″	35–65	API 8C	18–30
Y slip type	1.05″ – 7-⅝″	20–500	API 8C	35–320
SX / SLX casing	9-⅝″ – 36″	350–500	API 8C	200–480

Slip & Spider Specifications

Model	Type	Pipe Range	Rated Capacity (tons / kN)	Drive
PS‑175	Internal power slip	2-⅜″ – 5-¾″	150 tons / 1,350 kN	Pneumatic
PS‑375	Internal power slip	2-⅜″ – 14″	500 tons / 4,448 kN	Pneumatic
WQ series	External power slip	2-⅜″ – 9-⅞″	150–350 tons	Pneumatic / Hydraulic
Spider (various)	Stationary grip	2-⅜″ – 13-⅜″	150–350 tons	Manual / Power

Product Types – Vertical Lifting Solutions

1. API 8C Elevators (All Types)

• DDZ / CDZ center latch elevators: Forged alloy steel construction, 18‑degree taper, automatic latch, pipe sizes 2-⅜″ to 7-⅝″. Load capacity: 100–750 tons.

• SLX / SX side‑door elevators: Side‑opening design, square shoulder, fast pipe handling. Load capacity: 65–350 tons.

• TA / TB tubing elevators: Center latch, manual operation. Load capacity: 35–65 tons.

• SJ / SP auxiliary elevators: Single‑joint design for cementing and light drilling. Load capacity: 4.5–6 tonnes.

• Y series slip type elevators: Hinged design, interchangeable slip bodies. Pipe range: 1.05″ to 7-⅝″. Load capacity: 20–500 tons.

2. Pneumatic & Power Slip Systems

• PS series internal power slips: Mount inside the rotary table; pneumatically operated; pipe diameters up to 14″; load capacity up to 500 tons.

• WQ series external power slips: Mount externally around the rotary table; ideal for larger tubulars or space‑limited applications.

• Slant hole pneumatic slips: Specifically designed for directional drilling programs, handling pipe diameters 2-⅞″ to 13-⅜″.

3. Spider‑Elevator Combinations

• Dual‑purpose tools that function both as elevators and spiders, reducing tool change time on the drill floor.

4. Draw‑Works and Hoisting Systems

• AC VFD electric drive draw-works with regenerative braking. Power: 735–2,210 kW (1,000–3,000 HP). Available for ZJ40 through ZJ90 drilling rigs.

5. Arctic‑Rated Lifting Systems

• Complete vertical lifting packages with cold‑hardened seals, low‑temperature lubricants, and impact‑tested steel—rated for continuous operation at -45°C.

Application Fields

Land Drilling Rigs (ZJ20–ZJ90)

Vertical lifting is the core function of any drilling rig—every trip, every stand, every connection depends on reliable elevators, slips, and draw-works. SJ Petro lifting systems are standard equipment on ZJ series rigs worldwide.

Workover and Well Servicing Rigs (XJ Series)

Workover operations trip tubing repeatedly across multiple wells. Lightweight elevators, power slips, and compact spiders—engineered for high cycle life—keep your workover crew efficient and safe over long campaigns.

Offshore Platform Drilling

Offshore daily rig rates demand maximum uptime. Marine‑grade elevators, corrosion‑resistant slips, and remote‑operated spiders are standard. Our offshore vertical lifting systems are built to withstand saltwater environments and high cycle demands.

Arctic and Permafrost Drilling

In Siberian, Canadian, and Alaskan drilling programs, standard seals freeze and steel becomes brittle. Our Arctic‑rated lifting systems, proven at -45°C for Rosneft, use impact‑tested steel, cold‑hardened seals, and heated enclosures—ensuring safe hoisting when other equipment fails.

Casing Running and Well Completion

Running heavy casing strings demands high‑capacity elevators, rugged spiders, and reliable slips. Our 350–500 ton casing elevators and spiders are engineered for the extreme loads of deep completion operations.

Why Choose SJ Petro for Vertical Lifting Systems?

Backed by Sinopec – One of China's Top 500 Manufacturers

SJ PETROLEUM MACHINERY Co., Ltd. is a wholly‑owned subsidiary of Sinopec Oilfield Equipment Corporation. Ranked No.2 among China Top 10 Petroleum Drilling and Production Equipment Manufacturers and rated AAA by China Petrochemical Industry and Banks, we have over 50 years of manufacturing experience and a 5‑year warranty on select equipment.

API 8C, 7K, and Q1 Certified

All SJ Petro vertical lifting components are designed, manufactured, and tested to API Spec 8C (drilling and production hoisting equipment) and API Spec 7K (drilling and well‑servicing equipment). We are API Q1 certified, maintaining a quality management system fully aligned with ISO standards. We can provide API monogrammed products and complete certification documentation upon request.

Arctic‑Rated Engineering – National‑Level Low‑Temperature Laboratory

We operate one of China’s few national‑level low‑temperature impact testing laboratories, qualifying materials down to -60°C. This capability has proven critical on Rosneft drilling programs in Siberia, ensuring our vertical lifting systems remain safe and reliable when others freeze.

Global Export Experience – Over 30 Countries

SJ Petro equipment operates in over 30 countries, including Russia, Kazakhstan, the United States, Canada, the Middle East, and Southeast Asia. Our export team provides complete documentation: material test reports, dimensional inspection records, pressure test certificates, and GOST certification packages for Russian/Eurasian markets.

One‑Stop Vertical Lifting Supply – Elevators, Slips, Spiders, Draw‑Works

SJ Petro manufactures the complete vertical lifting ecosystem: elevators (all types), power slips, spiders, and draw‑works. One supplier. One quality standard. One warranty. One service contact.

Frequently Asked Questions (FAQ)

Q1: What API standards apply to vertical lifting equipment?
A: API Spec 8C (Drilling and Production Hoisting Equipment) provides requirements for design, manufacture, and testing of hoisting equipment suitable for use in drilling and production operations, including elevators, spiders, and slip assemblies. API Spec 7K (Drilling and Well Servicing Equipment) covers other components of the drilling equipment set.

Q2: What is the difference between an elevator and a slip?
A: An elevator is a lifting device that attaches to the traveling block via bails or links, gripping the pipe externally to hoist or lower it. A slip is a gripping device seated in the rotary table bushing that holds the string weight when the elevators are open, freeing the traveling block for the next operation. A spider holds the string during stationary operations.

Q3: What is the typical load capacity range for drilling elevators?
A: SJ Petro elevators cover the full industry range: auxiliary elevators (4.5–6 tonnes), tubing elevators (35–65 tons), side‑door elevators (65–350 tons), center latch elevators (100–750 tons), and slip type elevators (20–500 tons).

Q4: Are your vertical lifting components API certified?
A: Yes. All SJ Petro vertical lifting components are designed and manufactured according to API 8C and API 7K specifications, with quality management systems maintained under API Q1. We are API monogram licensed, subject to annual API audits, and can provide full certification documentation for third‑party inspection.

Q5: Do you offer Arctic‑rated vertical lifting equipment?
A: Yes. Our Arctic‑rated lifting systems are designed for continuous operation at -45°C, with cold‑hardened seals, low‑temperature lubricants, heated enclosures, and impact‑tested steel. These systems are proven on SJ Petro drilling rigs operating for Rosneft in Siberia.

Q6: What is the lead time for vertical lifting equipment?
A: Lead time depends on the type and quantity: standard elevators and slips: 4–8 weeks; custom sizes or load ratings: 8–12 weeks; Arctic‑rated systems: 10–12 weeks (includes impact testing and certification); large fleet orders: 12–14 weeks. Expedite options available.

Q7: Can you supply a full set of vertical lifting tools for a new drilling rig?
A: Yes. SJ Petro provides complete vertical lifting packages for new rig builds—including elevators, slips, spiders, draw-works, and control integration—all manufactured and certified to API standards.

Q8: What warranty do you provide on vertical lifting equipment?
A: Standard warranty is 12 months from date of shipment against defects in material and workmanship. Extended warranty options (up to 5 years) are available for fleet operators.