CAMTOP Model C & CHD Tubing Spider. Hydraulic or pneumatic actuated. Load rating: Model C 165,000 lbs (82.5T) / Model CHD 250,000 lbs (125T). Tubing range: 1.315″ to 5-1/2″. Heat-treated alloy steel. Interchangeable slip assemblies.
CAMTOP Model C & CHD Tubing Spider — Hydraulic & Pneumatic | 82.5T – 125T Tubing Handling Tool
£0.00
Description
CAMTOP Model C & CHD Tubing Spider
Hydraulic & Pneumatic Tubing Handling Tool — 82.5T ~ 125T Load Capacity
CAMTOP Model C and CHD Tubing Spiders are precision-engineered tubing handling tools designed to securely grip and hold tubing strings during tripping, workover, and well servicing operations. Available in pneumatic or hydraulic actuation, with interchangeable slip assemblies accommodating tubing sizes from 1.315″ to 5-1/2″. Constructed from heat-treated alloy steel for maximum durability in demanding oilfield environments.
LOAD RATING (C)
165,000 lbs
165,000 lbs
LOAD RATING (CHD)
250,000 lbs
250,000 lbs
TUBING RANGE
1.315″ – 5-1/2″
1.315″ – 5-1/2″
Product Overview
The CAMTOP Model C & CHD Tubing Spider is a heavy-duty tubing handling tool designed to securely hold tubing strings as they are lowered into or raised from the wellbore. The spider consists of three principal assemblies: the base (featuring a precision-machined tapered bowl), the slip assemblies (with replaceable inserts matched to tubing diameter), and the actuation system (hydraulic or pneumatic cylinder with linkage mechanism).
The Model C features a standard load rating of 165,000 lbs (74,843 kg), while the heavy-duty Model CHD offers an increased load capacity of 250,000 lbs (113,398 kg) with a reinforced base design. Both models support tubing sizes from 1.315″ to 5-1/2″ and are constructed from heat-treated alloy steel for superior strength and longevity in harsh drilling and workover environments.
Technical Specifications
| Parameter | Model C | Model CHD |
|---|---|---|
| Load Rating | 165,000 lbs (74,843 kg) | 250,000 lbs (113,398 kg) |
| Tubing Size Range | 1.315″ to 5-1/2″ (33.4 to 139.7 mm) | |
| Body Material | Heat-Treated Alloy Steel | |
| Actuation Type | Hydraulic or Pneumatic | |
| Hydraulic Pressure | 300 – 500 PSI (20.7 – 34.5 bar) | |
| Pneumatic Pressure | 90 – 120 PSI (6.2 – 8.3 bar) | |
| Gate Opening | 6″ (152.4 mm) | |
| Bowl Opening | 6-1/2″ (165.1 mm) | |
| Base Dimensions | 16-1/2″ x 18-1/2″ (419.1 x 469.9 mm) | |
| Height | 17-1/2″ (444.5 mm) | 18″ (457.2 mm) |
| Base Bolt Slot Width | 1-1/2″ (38.1 mm) | |
| Bolt Slot Centers | 12-3/4″ to 16-1/4″ (323.9 to 412.8 mm) | |
| Weight | 408 lbs (185.1 kg) | 457 lbs (207.3 kg) |
Actuation & Control Options
Hydraulic Actuation
Operating pressure: 300 – 500 PSI. Heavy-duty hydraulic cylinder delivers reliable, consistent slip actuation for demanding operations. Includes hydraulic foot control valve assembly and hose set with quick disconnects.
Pneumatic Actuation
Operating pressure: 90 – 120 PSI. Pneumatic cylinder with field-repairable design and readily available seal kits. Compatible with standard rig air systems. Optional filter/regulator/lubricator (FRL) assembly with gauge.
Control Valve Options
Available with foot-operated or hand-operated control valve assemblies. Quick-disconnect fittings enable rapid hose connection and disconnection. Control valve placement allows operator to maintain safe distance during operation.
Safety Latch System
Integrated safety latch prevents accidental opening of the slips when the tubing string is held for extended periods. Latch stops the link mechanism, ensuring positive slip engagement even if control pressure is lost.
Key Features & Advantages
1. Dual Load Rating Options
Model C rated at 165,000 lbs for standard operations; Model CHD rated at 250,000 lbs for deep well and heavy-duty applications. CHD model features reinforced base with increased thickness for superior structural integrity.
2. Interchangeable Slip System
Quick-change slip assemblies and inserts accommodate tubing from 1.315″ to 5-1/2″. Slip inserts are individually replaceable as consumable wear items. Precision-machined tapered bowl ensures uniform grip distribution.
3. Heat-Treated Alloy Steel Construction
All critical load-bearing components manufactured from heat-treated alloy steel for maximum strength and fatigue resistance. Precision casting and machining ensure dimensional accuracy and long service life.
4. Hinged Gate Design
Hinged gate with door pins allows the spider to be opened and removed from the tubing string when passing objects larger than the bore diameter. Gate securely locks in closed position during operation.
5. Greaseable Linkage System
All pivot points in the linkage assembly are equipped with grease fittings for routine lubrication. Replaceable bronze bushings at crank shaft and link connections minimize wear and extend service intervals.
6. Versatile Mounting Options
Slotted base holes (1-1/2″ wide) with adjustable centers (12-3/4″ to 16-1/4″) enable bolting to adapter plates. Integrated lifting eyes allow secure chaining to the rig floor for added stability.
Operating Principle & Application
The CAMTOP Tubing Spider operates through a simple mechanical linkage system driven by a hydraulic or pneumatic cylinder. When the control valve directs pressure to extend the cylinder, the linkage mechanism lowers the slip assemblies into the tapered bowl. The slips engage the tubing string, transferring the load from the rig hook to the spider. Retracting the cylinder lifts the slips up the taper, releasing the grip on the tubing string.
How It Works
- The spider is positioned and secured over the wellhead using base bolts or chains
- Correct-size slip assemblies and inserts are installed, matching the tubing diameter
- Control hoses are connected to the rig hydraulic or pneumatic power source
- Operator extends the cylinder via foot or hand control valve to close slips onto the tubing
- Tubing string weight transfers from the hook to the spider when the string is lowered slightly
- Control valve is reversed to retract the cylinder and release the tubing for continued tripping
Typical Applications
Workover Operations
Essential for holding and manipulating tubing strings during well workover, recompletion, and stimulation operations.
Tubing Tripping
Securely holds tubing while making or breaking connections during run-in-hole (RIH) and pull-out-of-hole (POOH) operations.
Well Servicing
Provides reliable tubing support during routine well servicing, pump changes, and downhole tool deployment.
Snubbing & HWO Units
Compatible with hydraulic workover (HWO) and snubbing unit setups for live well intervention operations.
Main Components & Spare Parts
| No. | Component | Remarks |
|---|---|---|
| 1 | Spider Base Assembly | Heat-treated alloy steel, precision-machined tapered bowl; CHD has reinforced thickness |
| 2 | Slip Body Assembly | Machined matched set; available for 1.315″-3-1/2″ and 3-1/2″-4-1/2″ tubing; solid bodies for 4-3/4″, 5″, 5-1/2″ |
| 3 | Slip Inserts | Replaceable consumable; available in 1.315″ to 5-1/2″ sizes; must be replaced as full sets |
| 4 | Link Assembly | Includes replaceable link bushings and grease fittings |
| 5 | Left & Right Hand Crank Shafts | Heat-treated alloy steel with replacement bushings in body |
| 6 | Lift Arms | Connected via taper pins with set screws |
| 7 | Actuating Cylinder | Pneumatic (field-repairable with seal kit) or Hydraulic (non-field repairable) |
| 8 | Yoke Assembly | Connects cylinder to link mechanism |
| 9 | Safety Latch & Guard | Prevents accidental slip opening; available with visor option |
| 10 | Control Valve Assembly | Foot-operated or hand-operated; pneumatic or hydraulic |
Maintenance & Care
| No. | Interval | Procedure |
|---|---|---|
| 1 | Daily | Grease all fittings. Inspect insert teeth for debris and wear. Verify linkage operates properly. |
| 2 | Semi-Annual | NDE on all exposed critical areas (slip bodies, base, gate, door pins). Replace crank and link bushings. Rebuild cylinder with new seals. Function test and record. |
| 3 | Annual | Complete disassembly. NDE all critical components. Replace crank shafts, bushings, and cylinder. Inspect door pin fit. Reassemble, function test, and document. |
Frequently Asked Questions
Q1: What is the difference between Model C and Model CHD?
The primary difference is the load rating and base design. Model C is rated at 165,000 lbs (74,843 kg) and is suitable for standard tubing operations. Model CHD is rated at 250,000 lbs (113,398 kg) with a reinforced, thicker base to accommodate the higher load requirement for deep well and heavy-duty applications. The CHD model is also slightly taller (18″ vs 17-1/2″) and heavier (457 lbs vs 408 lbs).
Q2: What tubing sizes can the spider handle?
The CAMTOP Tubing Spider supports tubing sizes from 1.315″ to 5-1/2″ (33.4 to 139.7 mm) through interchangeable slip assemblies and inserts. The slip body assembly for 1.315″-3-1/2″ uses one body set with interchangeable inserts, while 3-1/2″-4-1/2″ uses another body set. Solid slip bodies are available for 4-3/4″, 5″, and 5-1/2″ tubing.
Q3: How do I choose between hydraulic and pneumatic actuation?
Pneumatic actuation (90-120 PSI) is commonly used on rigs with available compressed air systems and is field-repairable with readily available seal kits. Hydraulic actuation (300-500 PSI) provides greater force and smoother operation, ideal for heavier loads or where pneumatic supply is limited. The hydraulic cylinder is a sealed unit and not field-repairable.
Q4: How often should slip inserts be replaced?
Slip inserts should be inspected daily for debris buildup, wear, or damage. Replace inserts when teeth are worn, broken, chipped, or when the insert has excessive vertical movement (1/10″ or more) within the slip body. Always replace inserts as a full set to ensure uniform grip on the tubing. Clean insert teeth regularly to maintain gripping performance.
Q5: What spares should I keep on hand for one year of operation?
Recommended one-year spares include: yoke, 4 slip bolts, 4 shaft retaining clips, 4 crank shaft bushings, 2 link bushings, 2 safety bolts, 1 cylinder repair kit (pneumatic) or 1 replacement cylinder (hydraulic), 12 retainer pins, hex head cap screws, cotter pins, 12 grease fittings, 4 lift arm set screws, hex nuts, and 4 lift arm taper pins. A complete spare cylinder is recommended for hydraulic models.
Q6: Can the spider be welded for repair?
No. All critical components of the tubing spider are manufactured from heat-treated alloy steel. No weld repair on any components is allowed. Any attempts to repair these items by welding will void all warranties and liability. Damaged components must be replaced with genuine CAMTOP parts.
Order the CAMTOP Model C & CHD Tubing Spider
Contact our sales team for pricing, delivery time, and technical consultation. Slip assemblies, spare inserts, seal kits, and complete spare parts packages are available. We provide full technical support for all your tubing handling needs.
PHONE / WHATSAPP
+86-18621723891
SALES@CPOSL.COM
WEBSITE
www.camtop-oilfieldtools.com
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