Specifications_50ton_SDG_beavertail_trailer_revised_4.14.26.pdf
PDF 112 KB Posted
- Attached to
- 40100 - Trailer Procurement Reissued
- Solicitation number
- Event 40100-13899
- Issued by
- Davidson County, Tennessee
About this file
This is a specifications document for a 50-ton lowboy trailer with detachable neck and hydraulic rear ramps issued by the State of Tennessee for trailer procurement. The specifications detail a three-axle, non-ground engaging hydraulic removable gooseneck lowbed trailer designed for hauling construction equipment with a minimum payload capacity of 100,000 lbs. concentrated load over a 12-foot deck span. The trailer must have acceptable brand models including Eager Beaver 50GSL-PT-BR, Trail-Eze TE110DG, or equal alternatives. Key features include a 32-inch integral beavertail (weld-on designs are not acceptable), a 24-foot flat deck minimum with 10-foot width, hydraulic lift cylinders controlled from the driver's side, front folding ramps with spring assistance, and adjustable air ride suspension with manual height adjustment capabilities. The trailer must be rated for a maximum overall length of 55 feet with an 8-inch ground clearance when loaded and a maximum 24-inch deck height at the front.
The specifications require extensive safety and compliance features including all-wheel ABS with Wabco or equivalent anti-lock brake systems, 16.5-inch by 7-inch heavy-duty air brakes with automatic slack adjusters, twelve new radial tires, LED lights meeting DOT standards, and a seven-way receptacle for electrical connections. All metal surfaces must be media blasted and painted with manufacturer's standard white polyurethane in two coats with hardener applied to all surfaces including underside protection. The successful bidder must maintain a franchised dealer location in Tennessee, submit an engineer's stamped letter confirming compliance with all specifications, and provide a Manufacturer's Statement of Origin executed in the name of the agency upon delivery. The unit must be completely assembled and ready for use upon delivery and must meet all state and federal regulations in effect at the time of delivery.
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Other files
| File | Type | Posted |
|---|---|---|
| 40100_Trailer_Procurement_Reissued.pdf | ||
| SHARE_TESTING_Trailer_TsCs_13899.pdf |
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Text version
SPECIFICATIONS FOR TRAILER: 50 TON LOWBOY; WITH DETACHABLE NECK,
HYDRAULIC REAR RAMPS
ACCEPTABLE BRANDS/MODELS: EAGER BEAVER 50GSL-PT-BR,
TRAIL-EZE TE110DG 0R EQUAL.
ALL SPECIFICATIONS ARE CONSIDERED MINIMUM UNLESS OTHERWISE NOTED
1. General: 50-ton capacity, three axle, non-ground engaging hydraulic removable gooseneck, lowbed trailer for hauling various construction equipment, minimum payload capacity of 100,000 lbs. concentrated load in 12’ of deck.
2. Gooseneck Type: Hydraulic removable, non-ground engaging, pin and stirrup connection, scraper neck design. Storage area in gooseneck with cover. Steel locking pin cylinder to lock trailer during transport mode or manufactures approved design to lock neck during transport.
3. Gooseneck Travel: Adjustable travel height feature for fifth wheel or road clearance adjustment with the ability to raise the gooseneck 2” and lower the gooseneck 4”.
4. Gooseneck Support Cylinder: Hydraulic support cylinder to support gooseneck when detaching to eliminate blocking; with control on driver’s side.
5. General Requirements: 108” clearance radius with 16” King pin setting. King pin height 50” loaded.
6. King Pin: Standard 2” SAE approved, mounted in 5/16” 5th wheel plate.
7. Hydraulic Power: From tractor wet-line kit (PTO). Maximum operating pressure 2,500 PSI to 3000 PSI.
8. Hydraulic Lift Cylinders: Two (2) hydraulic cylinders with controls on driver’s side.
9. Gooseneck to Deck Connection: Two (2) alignment pins with stirrups. Deck alignment guide for gooseneck self-alignment to deck. Air or hydraulic actuated vertical lock pin gooseneck to deck with manual safety lock. Hook and bar connection not acceptable.
10. Overall Maximum Length: 55’.
11. Deck Construction: Four (4) 16” deep/full length one-piece (no splices) I-beams; 100,000 PSI flanges (fully cambered beams). Tapered beams on first 9’. 3-5% grade with spring loaded front ramps. Fixed ramp deck with 20-degree approach to wheel covers.
12. Crossmembers: One (1) piece junior I-beam pierced through main beams on minimum 20” centers.
13. Outriggers: 12” heavy duty cast steel full length of deck
14. Platform Length: 24’ flat deck minimum.
15. Platform Width: 10’with 120” axles
16. Deck Height: Maximum 24” loaded at front of deck with maximum 50” loaded 5th wheel height.
17. Ground Clearance: 8” loaded; adjustable 2” increments with 50” loaded 5th wheel height.
18. Deck Front Slopes: No traction bars/cleats. Equipment to be loaded includes steel wheel asphalt roller, asphalt paver, milling machine, excavators, etc.
19. Front Ramps: Minimum 36” front folding ramps steel, double hinged, wood filled, spring assist.
20. No bucket trough.
21. Top Flange Reinforcement: Top flange outside main beams.
22. Lash Rings: Twelve (12) 1” forged D-rings, bent style, 6 each per side of deck. One on each bolster.
23. Flag holder; Rear flag holders
24. Decking: 1 ½” Full width Apitong, attached by bolts or self-tapping screws and sealed with wood sealer.
25. BEAVERTAIL: Trailer to have a 32” beavertail which is an integral part of the main frame. The beavertail and ramps shall be, designed, constructed, and rated for the full capacity of the trailer. WELD ON BEAVERTAIL NOT
ACCEPTABLE.
26. Rear hydraulic ramps. Ramps should be approximately 54” L by 36” W.
27. Suspension: Ridewell or equal air ride suspension with manual +3”/-3” height adjustment in 1½” increments, and manual exhaust valve. Air lift required.
28. AXLES & BRAKES: ALL WHEEL ABS to come equipped on axles and brake components. To include a Wabco or equal anti-lock brake system with a 4S/3M (4 sensors and 3 modulator valves) and spring-brake valve and chambers (Type 30/30) on all wheels. All 3 axles to be 5” diameter, .75” wall thickness, 25,000 lbs. rated with H.M. series bearings. Stemco or equal Oil seals and Timken bearing or equal to be provided. 16-1/2” x 7” Heavy Duty Air Brakes with brake chambers, “S” cam Automatic Slack Adjusters to be provided. Brake Drums to be Outboard type. Axle spacing to be 50”.
29. Wheels: Steel disc, hub piloted type, painted white, outboard mount with oil seals.
30. Tires: Twelve (12), new Goodyear or equal 255/70R 22.5 (H) 16 P.R.
Radials.
31. Wheel covers; Load bearing wheel covers over all 3 axles.
32. Paint: All metal surfaces are to be media blasted with all mill scale, oil and welding slag removed prior to painting. All metal surfaces shall be primed and painted manufacturer's standard white polyurethane (2 coats of paint with hardener). The underside shall be protected by standard white polyurethane coating. DOT reflective tape applied as required.
33. Lights: All lights to be LED, Ultra Blue sealed lights, grommet mounted with location and spacing to be DOT approved. Shall include 7-way receptacle.
Wiring system is to be modular, sealed and circuit breaker protected. All electrical shall meet all SAE, ICC and DOT Standards.
34. Mud Flaps: Rubber type rear of axle #3.
35. Parts Listing, Maintenance Requirements, literature and standard features shall be furnished upon delivery in an electronic format.
36. Assembly: Units shall be completely assembled and ready for use upon delivery.
37. Successful bidder must have a franchised dealer located in the State of
Tennessee.
38. Must have engineers stamped letter submitted with bid stating that the trailer meets the above specifications.
39. MANUFACTURER'S STATEMENT OF ORIGIN: Statement to be furnished when unit is delivered. Invoice to include each serial number.
Manufacturer's statement of origin is to be executed in the name of agency on purchase order.
UNIT MUST MEET ALL STATE AND FEDERAL REGULATIONS AT THE TIME OF
DELIVERY
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