MTPM TC-315 Guide Sheave Assembly is a forged-welded guide pulley component engineered specifically for 1524 mm (60 inch) diameter sheaves used in crown block systems.
Service life: 8~10 years under normal drilling conditions
Standard: Produced under API 8C
Third party inspection: BV, CCS, ABS, SJS etc. available
Product Features
OEM Interchangeability
Designed with full compatibility for BOMCO, LSNOV, and similar manufacturer assemblies, enabling direct replacement and minimized rig downtime.
Durable Alloy Steel Construction
The alloy steel main body provides excellent wear resistance, fatigue strength, and ease of repair through forging-welding.
Strict NDE Protocols
Mandatory MPI and UT ensure each unit meets stringent structural and safety criteria, reducing risks in field operations.
API 8C Compliance
Manufactured under API Spec 8C licensing, meeting material traceability, grooving, and inspection requirements. API 8C certificate number: 8C-0349.
Precision Groove Sizing
The groove diameter (38 mm) matches the drilling line, avoiding excessive friction or wear, while optimizing line support and longevity.
Crafted to mirror the fit and function of BOMCO, LSNOV, and other leading OEM assemblies, it ensures seamless interchangeability. This assembly is designed to precisely guide the drilling line, whether it's the fast line or deadline, within the crown block framework, maintaining proper alignment and load distribution. The main sheave body is made from high-quality 45# alloy steel, chosen for superior toughness, fatigue resistance, and weldability.
Quality Assurance & Compliance
Each TC-315 Guide Sheave Assembly undergoes rigorous inspection protocols before delivery. We perform full Magnetic Particle Inspection (MPI) and Ultrasonic Testing (UT) on all welds and sheave surfaces to detect internal and surface discontinuities, ensuring structural integrity. The rope groove diameter is precisely sized to accommodate 38 mm (1 1/2 inch) drilling line.
Overall, manufacturing and quality control adhere strictly to API Spec 8C standards, offering global assurance of safety and performance. The assembly is suitable for use with HONGHUA, RG, RONGSHENG, EMSCO, and LSNOV equipment.
Product Details Gallery
Frequently Asked Questions
Q1: What material is used for the Deadline Sheave Assembly?
A: The assembly is constructed from high-quality 45# Alloy Steel (AISI 1045 / JIS S45C), known for its excellent toughness and fatigue resistance.
Q2: Is this assembly compatible with other OEM brands?
A: Yes, it is designed for full OEM interchangeability with BOMCO, LSNOV, and other leading manufacturers to minimize downtime.
Q3: What standards does the product comply with?
A: The product is manufactured and inspected strictly under API Spec 8C standards, ensuring global safety compliance.
Q4: What is the expected service life of the sheave?
A: Under normal drilling conditions and with periodic maintenance of bearings and grooves, the service life is approximately 8 to 10 years.
Q5: What kind of quality inspections are performed?
A: We conduct mandatory Magnetic Particle Inspection (MPI) and Ultrasonic Testing (UT) on all welds and surfaces to ensure structural integrity.
Q6: What is the operating temperature range?
A: The assembly is rated for temperatures ranging from -40°C to 120°C, making it suitable for various environmental conditions.
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