Equipment
Service King 550 Rig Specifications & Visual Listing Supplement
1. Nameplate & Serial Identification
Property
PropertySpecification Value
- Manufacturer
- Service King Manufacturing Inc.
- Model Number
- 96-250
- Serial Number
- DK-219
- Date of Manufacture
- 5/29/2007
- API Specification
- API Spec 4F
- Derrick Height
- 96 ft
- Max Static Hook Load
- 250,000 lbs (6 Lines at 3.5° to vertical)
- Max Wind Capacity
- 69 MPH (With or without setback)
2. General Rig Operational Capabilities
Operational Mode
Depth / Load Capacity
Tubular / Line Specifications
- Workover Depth
- 14,000 ft
- 2-7/8" Tubing (10.4 lbs/ft)
- Well Service Depth
- 18,000 ft
- 2-7/8" Tubing (8.7 lbs/ft)
- Drilling Depth Capacity
- 8,000 ft
- 3-1/2" Drill Pipe
- Max Static Hook Load
- 250,000 lbs
- Rated with 6-Line String-Up
3. Carrier & Powertrain Specifications
Engine Model
MTU Series 1300 Tier 4 Clean-Diesel / Detroit Series 60 (550 HP Rating)
Transmission
Allison 4500 OFS (Off-Road Series) Automatic Transmission
Carrier Frame
High-Tensile Alloy Wide-Flanged Heavy I-Beam Construction
Axle Configuration
5-Axle Heavy Carrier (Twin Steer / Tridem Drive & Push Axle)
Front Axles
20,000 lbs Capacity each with 385/65R22.5 Wide-Base Radial Tires
Rear Axles
46,000 lbs Tandem Walking-Beam Suspension with 11R22.5 Severe-Service Mud/Snow Tires
Auxiliary Axle
25,000 lbs Air-Push Axle Assembly
4. Mast & Derrick Assembly
Clear Height
96 ft Derrick (API Spec 4F)
Static Hook Load Rating
250,000 lbs (6 lines at 3.5° to vertical)
Wind Load Capacity
69 MPH (With or without setback)
Tubing Board Racking Capacity
110,600 lbs Setback Load (Racks ~11,000 ft of 3-1/2" Range 2 Tubing in Doubles)
Rod Board Capacity
31,208 lbs Static Rod Load
Safety & Accessories
Auto-unfolding/folding monkey board, dual fall-arrester climber safety lines, and explosion-proof lighting fixtures
5. Drawworks & Drum Specifications
Component
Main Drum Specs
Sandline Drum Specs
- Brake Rims
- 42" Diameter x 12" Width (Water Spray Cooled)
- 42" Diameter x 8" Width (Water Spray Cooled)
- Auxiliary Braking
- Double 48" Air-Cooled Disc Assist System
- Standard Mechanical Band Brakes
- Barrel Dimensions
- 16" Diameter x 38" Width
- 16" Diameter x 43" Width
- Grooving / Line
- 1" Lebus Grooving (1,000 ft Line Capacity)
- Capacity: 14,400 ft of 9/16" or 11,800 ft of 5/8" Wireline
- Clutch & Drive
- PO324 / Clutch 324; Double 140 Chain Drive
- Clutch 224; Double 140 Chain Drive
- Main Drum Shaft
- 6.60" Forged Shaft on Roller Bearings
- 5.90" Forged Alloy Shaft
6. Auxiliary Hydraulic Systems & Rig Floor Tools
Leveling & Footing
4x Heavy-Duty Hydraulic Leveling Jacks with 5.5" Solid Chrome Shafts and Y-Base / H-Base Load Distribution Substructure
Operator Controls
Ergonomic Service King Console Layout (Central Valve Banks, Hydraulic Throttle, Brake Levers)
Handling & BOP Equipment
Hydraulic Rod & Tubing Power Tongs, 11-1/16" 5K Class Blowout Preventer (BOP) Stack Options, Dual 8,000 lb Hydraulic Winches
7. Rig Inspection Photo Index & Descriptions
Image Ref
Component / View
Visual Details & Observed Condition
- Image 1
- Front Cab & License Plate
- Front cab view showing "SK" shield logo, Oklahoma license plate (61C-466), front bumper lights, and mast crown structure overhead.
- Image 2
- Side Profile & Carrier Axles
- Side profile showing the carrier chassis, multi-axle tires, side walkway/handrails, mast truss structure, and white support truck parked alongside.
- Image 3
- Crown & Yard View
- View of mast frame extension, crown block assembly, guy lines, yard lot background, and neighboring pumping unit equipment.
- Image 4
- Engine Bay & Power Unit
- Detailed engine compartment view showing block paint wear, hydraulic hoses, air lines, braided steel lines, and fluid filter assemblies.


