20’/40′ City Combo Tandem

20’/40′ City Combo Tandem

Overall Length: 29’ -11” retracted or 40’-10” extended

Overall Width: 96”

Fifth Wheel Height: 48 ± 1”

Kingpin Location: 24” (From rear face of front bolster)

Landing gear Location: 100” (From centerline of kingpin)

Axle Spread: 49”

Tandem Location: 54” (From rear face of rear bolster)

Tare Weight: 7,660 lbs ± 3%

Payload: 44,800 lbs in 20’ position; 67,200 lbs in 40’ position

Product Details

Chassis

Modern design with the most advanced technology, high-strength alloy steel materials, solid structure increase the load capacity with high stability.

Axles

YORK (India) 5” round axles with 22,500 lbs capacity increases load capacity and improves handling significantly.

Suspension system

HUTCH (USA) H9700 mechanical tandem suspension supports the spring assembly absorb greater loads, which increases load capacity.

Upper coupler

5/16” pick up plate with JOST (USA) 2” diameter square type king pin per SAE standard is a strong and reliable connection
between the tractor and trailer.

Locking assembly

Air operated locking pins, activated by HALDEX (Mexico) Goldseal 24/24 spring brakes, prevent the trailer from becoming
disconnected from the tractor.

Landing gear

YORK (India) 5” round axles with 22,500 lbs capacity increases load capacity and improves handling significantly.

Wheels & tires

  • ALCOA (Hungary) 22.5 x 8.25 10-stud hub-piloted Aluminum wheels are durable, precise, and safe wheels for heavy-duty trucks.
  • WESTLAKE (Thailand) 11R22.5-14PR tubeless type provides good traction on various terrains.

Electrical system

  • PHILLIPS (Mexico) molded sealed wiring harness, protects wires from environmental factors and damage.
  • OPTRONICS (Taiwan) LED lights are designed to be
    theft-resistant and withstand harsh conditions.

Brake system

  • SEALCO (USA) 110800 spring brake priority valve system improves vehicle performance and safety.
  • WABCO (Thailand/USA/Germany/Poland) 2S/1M ABS system improves vehicle control and reduces the risk of accidents.
  • Specifications

  • Warranty Policy

Front Main beam Fabricated I-beam with high strength Grade 100 steel flanges.
Cross member Fabricated 3/16” thick channel with profiled bar type diagonal brace.
Upper Coupler 5/16” pick up plate with 2” diameter square type king pin per SAE standard, 380-420 HB, with 2” water drain holes, design to be integrated with main frame through welding.
Front Bolster 8” wide x 10” high x 1/4” thick open section, with 3-1/2” chamfer in full length for gathering container in operation. 7-way receptacle and glad hands are located in the center of front bolster. Cast corner caps.
Front Locking pin Provided.
Center Bolster 8” wide x 6” deep x 1/4” thick tube section. ASTM A-500 GR.B or equivalent.
Center twist Lock Provided.
Rear Bolster 8” wide x 3/8” thick top plate with 7” wide x 6-5/8” deep x 1/4” thick “U” type bottom channel.
Rear twist Lock Provided.
Rear Bumper 4” x 4” square tube step with taper “H” section vertical member. Bar is welded to uprights and main beam.
Extension Beam Fabricated 7-5/8” tall x 5-1/4” wide I-beam with high strength Grade 100 steel flanges.
Rear Main beam W12@19lb/ft hot-rolled H-beam, ASTM A572 Grade 50 or equivalent.
Locking system Air operated locking pins, Activated by Goldseal 24/24 spring brakes on both sides of the trailer through third glad hand on front sill.
Landing Gear 65,000 lbs capacity, 2-speed 17” travel with low “T” shoes. Crank handle is located on the driver’s side of the chassis. Landing gear brackets are bolted on the main beam as the layout.
Suspension H9700 mechanical tandem suspension, overslung configuration with Thaco Springs (Vietnam) high-arch 3-leaf spring (354-00).
Axles
  • 5” round axles with 22,500 lbs capacity; 71.5” track; 16.5”X7” 4515Q brake. Dust shields are provided.
  • 1.5-28 spline, 5.5” automatic slack adjusters.
  • Reserved PSI interface; Heat Sensing Labels.
  • Axle Installation orientation 90 degrees REAR, chambers DOWN (1 abs ready front, 1 non abs rear per unit).
Wheel end Hub & Drum Assembly. 340-4370 solid Aluminum Grease hub cap. Seals P/N Scotseal plus XL 46300. Bearings. Spindle nut Double Nut.
Lubricant Synthetic Semi-fluid grease lubricant.
Wheels 22.5 x 8.25 10-stud hub-piloted wheels with 5 hand holes and with TR572 valve stem.
Tires 11R22.5-14PR tubeless type.
Brake System 110800 spring brake priority valve system and 2S/1M ABS system. Glad hand 12-0061 and 12-0081. 3/8” blue air tube for control and 3/8” red for supply. Goldseal T30/30, 2.5” stroke brake chamber. THACO CMC (Vietnam) air tanks.
Electrical Mold seal wiring harness, Reserved PSI and GPS connector. LED lights (amp connections for S/T/T lights and 180 bullets for others). The theft proof design used for 4” LED lighting.
Electrical Receptacle 16-724 plastic material with split pins.
Document Holder THACO Plastic Components (Vietnam). Installed on roadside near crank handle.
Conspicuity tape Installed per federal regulations.
Painting Abrasive blast of all metal surfaces – not less than SA-2.5 to achieve clean bare steel. Surface will be coated with electrophoresis primer and powder topcoat. Total thickness not less than 80μm after dry membrane. Coating supplier PPG (Vietnam).
Marking Customer configuration (includes Decal, layout, VIN, nameplate).
Hubodometer NONE
Tire Inflation System PSI (USA) Tire Inflation System with THERMalert.
Mud flaps THACO Plastic Components (Vietnam) 30”x24”x1/4” White PVC mud flaps with “CUSTOMER” logo.

No. Part Name Manufacturers Name Time Warranty Information
1 Frame Thaco Trailers  5 Years THACO INDUSTRIES TRAILERS AND HEAVY STEEL STRUCTURES MANUFACTURING LIMITED LIABILITY COMPANY
Add : Chu Lai IZ., Nui Thanh Town, Quang Nam province, Vietnam
Office: (+84) 2353.565.327
Website: https://thacotrailers.com/
2 Paint(ED + Top coat) PPG Painting: 7 Years

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