Nov Varco TDS Parts C Type Back-up Clamp for Rig Drilling

• Customization: Available
• After-sales Service: Yes
• Warranty: 1 Year
• Model NO.: 117941
• Manufacturing Process: Forging
• Surface Treatment: Polishing
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Structure: H Type, C Type and L Type
• Brand: Nov, Varco, Tesco, Canrig, Hh, Jh.Tpec
• Model: TDS11SA, TDS8SA, TDS4h
• Clamping Range: φ87~φ203mm
• Connection: Via Anti-Torque Beam or Floating Pin
• Shock Absorption Design: Shock Absorption Spring and Guide Shaft System
• Drive: Double Cylinder
• Safety Design: Retaining Wall Structure
• Quick Change: Modular Jaws
• Materials: High-Strength Alloy Steel
• Seal: Sealing Pin
• Efficiency: Acceleration Controlled Within 0.5m/S
• Weight Balance: Double Beam Structure
• Safety: Dual PLC Control + Mechanical Anti-Looseni
• Adaptable Temperature: -35ºC~55ºC
• Transport Package: Wooden Box
• Specification: 300-500kg
• Trademark: VSP
• Origin: China
• HS Code: 8431431000
• Production Capacity: 1000pieces/Year
• Package Size: 100.00cm * 80.00cm * 80.00cm
• Package Gross Weight: 300.000kg

Product Description

The Top Drive Back-Up Clamp serves as an indispensable support mechanism within the Top Drive Drilling System (TDS). This innovative device is primarily designed to facilitate the seamless unscrewing and screwing of drill pipes during complex drilling operations. Its pivotal function is to expertly secure the drill pipe using hydraulically operated jaws, in perfect harmony with the Top Drive, ensuring efficient, safe, and automatic make-up and break-out processes. This cutting-edge technology significantly amplifies drilling efficiency while minimizing the risks associated with manual interventions.
 

Product Name: TDS BACK-UP CLAMP
Brand: VARCO, TESCO, CANRIG, TPEC, JH, HH, BPM.
Applicable models: TDS4SA, TDS8SA, TDS9SA, TDS11SA
Part number: 117941, 118511, 30157287, 30160486,
30160658, 112489-2, 124902+30, 3852
Price and delivery: Contact us to receive an exclusive and tailored quotation
Function: Structurally, this advanced equipment comprises a robust tong body, a high-performance hydraulic cylinder, an integrated shock absorption system, and a sturdy anti-torque frame. It features a modular design adaptable to a variety of drill pipes (ranging from φ87 to φ203mm). Modern top drive back-up tongs embody the latest in full hydraulic drive technology, complete with automatic compensation for drill pipe deflection, and exceptional anti-loosening and anti-slip capabilities. These innovations have solidified their status as essential components of today's standardized drilling technology.

Brand & Model:

NOV/VARCO : TDS4S ATDS-8SA, TDS-9SA, TDS-10SA, TDS-11SA
TESCO : HXI, HCI, HS, ECI, EMI, EXI
CANRIG :1035, 1050, 1250, 8050, 6027

HH(HongHua) : DQ225DBZ, DQ315DBZ, DQ450DBZ, DQ675DBZ, DQ900DBZ, DQ225Z, DQ450Z, DQ900DBZ, DQ225Z, DQ450Z
JH : DQ40B, DQ50B, DQ50BQI-JH, DQ70BS
BPM:DQ40BC, DQ50BC, DQ70BSH, DQ70BSC, DQ70BSD, DQ80BSC, DQ9OBSC
TPEC:DQ40AIII-A, DQ40LHTY-LA, DQ501I-A, DQ50III-A, DQ70III-A, DQ90I


 

 

The core components and functions:
1. Clamp body structure
Dual-cylinder clamp design: Our advanced, hydraulically driven dual-cylinder system precisely synchronizes jaw movements, ensuring the balanced clamping of drill pipes. This design outperforms traditional single-sided clamping methods, delivering enhanced efficiency and reliability.
Floating pin mechanism: Featuring a spring-supported floating pin, this mechanism automatically compensates for any displacement deviations during the screwing process of drill pipe threads, thereby enhancing the precision of make-up and breakout operations.

2. Hydraulic drive system
Hydraulic cylinder and piston: The innovative solenoid valve precisely orchestrates the oil flow, seamlessly driving the piston for smooth jaw support extension and retraction. This facilitates a flawless clamping/release operation, ensuring efficiency and precision.
Sealing technology: Featuring a cutting-edge oil pouring cup leak-proof design and a robust back-clamp sealing pin, this technology significantly minimizes the risk of hydraulic oil leakage, enhancing reliability and safety.

3. Clamping actuator
Replaceable jaw module: Engineered for excellence, the jaw module, rigorously tested with ANSYS static analysis, expertly dissipates stress concentration on drill pipes. It offers swift replacement adaptability for varying drill pipe dimensions (φ87~φ203mm).
Anti-loosening device: This system boasts a formidable mechanical anti-loosening mechanism coupled with dual PLC control, ensuring steadfast clamp integrity and preventing accidental release during operations.

4. Auxiliary function components
Shock absorption system: Designed with an integrated spring and guide shaft, this system skillfully absorbs drill string vibrations, safeguarding the clamp structure from potential damage.
Anti-torque frame: Rigidly connected to the Top Drive body, this frame efficiently transmits anti-torque, guaranteeing unwavering operational stability and performance.

5. Safety and adaptability design
Retaining wall support structure: Expertly engineered to prevent lateral displacement, this support system enhances the anti-eccentric load capacity, ensuring robust operation under stress.
Modular interface: Designed for versatility, this interface seamlessly integrates with mainstream Top Drive models (like TDS11SA) and supports rapid disassembly and assembly, boosting operational efficiency.







ABOUT US:





SHANDONG VS PETROLEUM TECHNOLOGY CO., LTD (VSP), Founded in 2010, VSP excels in the manufacture, import, and export of top-tier petroleum equipment. Our core operations thrive on comprehensive oil & gas drilling logistics and technical services, expertly fulfilling the escalating global demands of the petroleum sector.
With 16+ years of unparalleled expertise in the Top Drive arena, we've cultivated strong OEM import channels in the U.S., Canada, and the EU. Our dedication to stringent pricing and quality standards has solidified our reputation as a trusted supplier for industry titans like CNPC, CNOOC, and COPE. We are passionately committed to building lasting partnerships through superior service, premium-quality products, competitive pricing, and prompt delivery.
At VSP, customer satisfaction is our utmost mission.

Our expansive 1,000 square meter warehouse is managed by a skilled team of warehouse keepers and cost accountants. By adhering strictly to API quality system standards, we ensure meticulous acceptance, storage, and maintenance of raw materials, alongside vigilant inventory and shipment management, all within the confines of rigorous safety protocols.



Advanced manufacturing equipment:

 

Here attached are additional part numbers for the Back-up Clamp for your reference:

78002	PLATE,CLAMP,SERVICE LOOP
78801	CLAMP,HOSE,2.5-12.25
90153	CLAMP,END,H-RAIL
116869	J-BOLT,CLAMP,.75DIA (P)
117941	ACTUATOR,ASSY,CLAMP,PH
118511	MANIFOLD,ASSY,CLAMP,CYLINDER
119122	CLAMP,LINK
120165	CLAMP,LINK-TILT,500T,TDS9
120660	CLAMP,LINK(350 TON),MS17
122599	CLAMP,LINK,250T,PH50
613435	BOLT,DRUM SHAFT LOW DRIVEN SPROCKET RIM CLAMPING
30125833	MANIFOLD,PH100,CLAMP CYLINDER ASSY (STK @ LAFAYETTE, LA)
30157287	CLAMP,CYLINDER,ASSY,PH75
30157406	BASE, CLAMP, LINK-TILT(3.5"DIA.LINK) TDS
30160486	PISTON,SW CLAMP
30160657	GLAND,SPIN CLAMP
30160658	ASSY, PISTON, SW CLAMP
30172179	SAFETY BAR,CLAMP CYL
30178847	PIN,HINGE,CLAMP CYLINDER,GATE
107588-7	CLAMP,HOSE,7.38",TDS10
112489-2	Hovercraft clamp manifold housing
117393-001	CABLES AND CLAMPS
124902+30	GATE,CLAMP,CYL,MACH,PH100
130585-9002	GROUND CLAMP, 4NM
15015+30	CLAMP, HOSE (REPLACES 15015)
30157228-9001	END CLAMP, (E/NS 35 N)
30160444-SK	KIT, SEAL, CLAMP CYLINDER ASSY
53304-128	CLAMP,HOSE,TDS10
53304-152	CLAMP, HOSE 7 1/8" (PHM-1)
56541-16-S	FLANGE CLAMP, SAE HYDRAULIC; CODE 61; SP
947642-006:58P	CONN-CABLE CLAMP, SHELL MS#14
7963	clamps
16552	Extention Port Clamp Box
1030253	Clamp,Exhaust,3-12"IDx38"-16UNC,Dr Thd,Yellow
716	Clamp,Hose,Worm-Gear,38" to 34"
820109	Swivel line clamp №820109 Tesco
503	Counterbalance battery mounting clamp №0503 Tesco
504	Counterbalance battery mounting clamp №0504 Tesco
M361000205	BRACKET,CABLE  CLAMP,ST-80CL
78736-30	SUPPORT,CLAMP
78736-13	SUPPORT,CLAMP
78736-11	SUPPORT,CLAMP
78736-15	SUPPORT,CLAMP
30170692	CLAMP,TRANSFER BARRTER
30160444	CLAMP CYLINDER ASSY
30175890	RETAINER,CLAMP CYL PIN
30174118	PIN,CLAMP CYL.,UPPER
30172503	PIN,CLAMP CYL,UPPER
30174119	PIN,CLAMP CYL.,LOWER
78736-3	SUPPORT,CLAMP,  69 ID
59047-P-29-J-063-C	HOSE ASSY,'LC'MANIFOLD TO LOWER CLAMP CYLINDER
59024-P-29-0-065-C	HOSE ASSY,'UC′MANIFOLD TO UPPER CLAMP CYLINDER
59047-P-29-M-075-C	HOSE ASSY,'LU'MANIFOLD TO LOWER UNCLAMP CYLINDER
59043-P-29-0-074-C	HOSE ASSY,'UU'MANIFOLD TO UPPER UNCLAMP CYLINDER
30125050	Assembly, Clamp Cylinder PH-100 (TDS-8S)
30171628	CABLE CLAMP
94269-4	CLAMP,SINGLE PIPE/TUBE/HOSE
78735	SUPPORT     CLAMP
88478	CLAMP  S'LOOP
105225-2	TYPE   VI   CLAMP,3/4"TUBE
115217-MI	BEZEL W/U-CLAMP
107588-20	CLAMP,T-BOLT HOSE
30125583	LIFT CABLE ASSY,CLAMP CYL
125497	SHEAVE,LIFT,CLAMP     CYL.
59326P2300091	HOSEASSY,M°HOLERECT"B"TOCLAMPVP
53304-40	CLAMP HOSE
120164	CLAMP,  LINK  TILT,  250  TON
30157297	HANGER.CLAMP CYLINDER
124902	GATECLAMP ,CYL, MACH
30157221	BODY ,CLAMPCYLINDER
125057	GUIDE,  STABBING,   CLAMP  CYL
0000-7000-27	TB-END CLAMP, FUW E/UK SERIES
30157293	PIN,SAFETYCLAMPCYL
30125050-DWG	Drawing, Clamp Cylinder Assembly
30125833-DWG	Drawing, Clamp Cyl Manifold Assy
3852	058 - Tab,Breakaway,DieHolder,6-7/8"GrabberClampBox,HMI *In Stock*
6244	062 - Retainer,Top,DieHolder,6-7/8"GrabberClampBox,HMI *In Stock*
7973	073 - Clamp,Connection Lock,4"FH & 3-1/2"IF *In Stock*
17660-1	170 - Ring,Clamp,QuillGearDrive,Gearbox,HMI **6 Week Delivery**
14786	176 - CLAMP,MUFFLER,1-3/4",YELLOW **1 Week Delivery**
3848	189 - CYLINDER,CLAMPBOX,HMI *In Stock*
703	226 - Clamp,Hose,WormGear,PerfBand,SS,11/16"to1-1/2"x1/ 2"W **1 Week Delivery**
P61000040-8-S	CLAMP,BAND
30117731	FLANGE CLAMP
M614005789	STABBING GUIDE,CLAMP CYL,3-5.15"(MACH)
30178843-1	CLAMP,BAND-T-BOLT
30178426	CLAMP,MUD HOSE
114869-SF-BLK	1 SOCKET W/INLINE SQUARE FLANGE MOUNT RECEPTACLE,MECHANICAL CLAMP,BLACK
114869-SF-WHT	1 SOCKET W/INLINE SQUARE FLANGE MOUNT RECEPTACLE,MECHANICAL CLAMP,WHITE
114869-SF-RED	1 SOCKET W/INLINE SQUARE FLANGE MOUNT RECEPTACLE,MECHANICAL CLAMP,RED
30175006	CLAMP  LINK,MACH
114869-SF-BLU	1 SOCKET W/INLINE SQUARE FLANGE MOUNT RECEPTACLE,MECHANICAL CLAMP,BLUE
114869-PL-BLU	1 PIN W/INLINE PLUG,NO KEY,MECHANICAL CLAMP,BLUE
114869-SL-BLK	1 SOCKET W/INLINE RECEPTACLE,MECHANICAL CLAMP,BLACK
114869-SL-RED	1 SOCKET W/INLINE RECEPTACLE,MECHANICAL CLAMP,RED
114869-SL-BLU	1 SOCKET W/INLINE RECEPTACLE,MECHANICAL CLAMP,BLUE
114869-PF-BLK	1 PIN W/INLINE SQUARE FLANGE MOUNT RECEPTACLE,NO KEY,MECHANICAL CLAMP,BLACK
M614001826	ASSY,CLAMP CYLINDER,PH-65
114869-PF-WHT	1 PIN W/INLINE SQUARE FLANGE MOUNT RECEPTACLE,NO KEY,MECHANICAL CLAMP,WHITE
114869-PF-RED	1 PIN W/INLINE SQUARE FLANGE MOUNT RECEPTACLE,NO KEY,MECHANICAL CLAMP,RED
114869-PL-BRN	1 PIN W/INLINE PLUG,NO KEY,MECHANICAL CLAMP,BROWN
114869-PL-YEL	1 PIN W/INLINE PLUG,NO KEY,MECHANICAL CLAMP,YEL
114869-PL-ORG	1 PIN W/INLINE PLUG,NO KEY,MECHANICAL CLAMP,ORG
M614003467	PIN,CLAMP BODY POSITION
M614002346	MANIFOLD ASSEMBLY,CLAMP CYLINDER
M614001821	GATE,CLAMP CYLINDER
M614001814	BODY,CLAMP CYLINDER
114869-SLM-BLK	1 SOCKET W/INLINE PLUG,NO KEY,MECHANICAL CLAMP,BLACK
114869-SLM-WHT	1 SOCKET W/INLINE PLUG,NO KEY,MECHANICAL CLAMP,WHITE
114869-SLM-RED	1 SOCKET W/INLINE PLUG,NO KEY,MECHANICAL CLAMP,RED
M614002347-2	MANIFOLD,CLAMP CYLINDER
M614003514	STABBING GUIDE,CLAMP CYL.  6-6.75"(MACH)
78736-21	SUPPORT,CLAMP,  .63  ID
15015	CLAMP,HOSE
125057-XLT	GUIDE,STABBING,CLAMP CYL
78736-5	SUPPORT,CLAMP,.81 ID
18753692-001	CLAMP,HOBBLE 4.5"TYPE
124902-XLT	GATE CLAMP,CYL,MACH -45°C
30157221-XLT	BODY,CLAMP CYLINDER,-45°C
21T00128	GROUND CLAMP,4MM