20’/40′ Combo Tridem
Overall Length: 31’-7” (retracted) or 40’-11” (extended)
Overall Width: 96”
Fifth Wheel Height: 47 ± 1”
Rear Deck Height: 48 ± 1”
Kingpin Location: 18” (From the rear of the front bolster)
Landing Gear Location: 100” (From the kingpin center)
Tandem location: 26.5” (From rear face of rear bolster to rear axles center when extended)
Axle Spread: 61” + 61”
Tare Weight: 10,900 lbs ± 3%
Payload: 66,100 lbs for 20’ loaded or 74,100 lbs for 40’ loaded
- Specifications
- Warranty Policy
| Main beam | 16″x5” fabricated I-beam with high strength flanges and 6-11/32” height for gooseneck rail. ASTM Grade 130. |
| Upper coupler | 5/16” pick up plate with 2” diameter square type kingpin per SAE standard, 380-420 HB, with 2” water drain holes, design to be integrated with main frame through welding. |
| Front Bolster | Fabricated bolster assembly with high strength plates with 89” centers, equipped with none retractable twist locks. |
| Intermediate Bolster | Fabricated with retractable twistlocks with swing down twistlocks. |
| Rear Bolster | Tapered rectangle bolster of the main frame fabricated by 3/8” thick top and bottom plate with 5/16” thick side plates. 6-5/8” height x 4” wide fabricated box beam bolster on slider composed by1/2” thick top/bottom plates with 5/16” thick side plates with flip up twistlocks. |
| Slider beam | Fabricated I beam with 3/4″x5” upper and lower flanges and 3/16” web, slider extends or retract on 6” diameter steel rollers. |
| Locking system | Air operated locking pins, activated by Goldseal 30/30 spring brakes on both sides of the trailer through third gladhand 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. |
| Container locks | Provided |
| Suspension | 61″ tri-axle, underslung configuration with high-arch single spring (360-00). |
| Axles |
|
| 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 | 255/70R22.5-16PR tubeless type. |
| Brake System | 110800 spring brake priority valve system and 4S/2M 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) 18”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 Commune, Da Nang City, Vietnam Office: (+84) 2353.565.327 Website: https://thacotrailers.com/ |
| 2 | Paint(ED + Top coat) | PPG | Painting: 7 Years |












