A semi-trailer suspension is an important part connecting the traveling device and the frame of the semi-trailer.
All forces are all transmitted through the suspension system. And the suspension reduces the impact of harsh roads on the vehicle, plays a shock absorption effect, and improves the ride comfort of the vehicle.
Semi-trailer suspensions are widely applied to skeletal trailers, lowbed trailers, flatbed trailers, dump trailers, car transport trailers, oil tank trailers, van trailers, full trailers, wood transport trailers, agricultrucal vehicles, etc. Classification of suspension indlude German series suspensions, American series suspensions, bogie/boogie suspension series, air suspension series, rigid suspension series, YORK suspensions, ROR suspensions, HENRED suspensions, semi-trailer suspensions, trailer suspensions and agricultural series, etc.
For more about WONDEE Suspensions Project, please click：
| QC management system | Implementing IATF 16949-2016 |
| Services quality management system | Implementing ISO 9001-2015 |
| Warranty | 18 months since shipping date |
| Quality testing passed | An independent lab in China |
| Raw material for suspensions | Q235 from China's TOP-3 steel mills can achieve a longer life under higher loads |
| Steel plate cutting by | CNC Plasma Cutting Machines |
| Press forming by | 40-800 ton hydraulic press machines with hundreds of precision molds |
| Hanger welding by | Automatic CNC welding robots/lines with hundreds of precise fixture toolings |
| Smooth surface by | Shot-peening |
| Painting by | Automatic coating line |
| Producing leaf springs and casting parts by | Ourselves to ensure the lead time and quality are under control |
| Equalizer bushes | Using taper or greaseless powdered metal ones to be more durable |
| Arm bushes | Using natural rubber ones to be more durable |
| Adjustable arms screw by | Galvanized anti-rust treatment |
| Sets of annual output | 50,000+ |
| Overseas market | 30+ countries (Austraulia, Polland, Russia, Brazil, Mexico, Thailand, Malaysia, Singapore, Vietnam, The Philippines, Indonesia, Bolivia, Argentina, Chile, Peru, Guatemala, Panama, Egypt, South Africa, Nigeria, Tanzania, etc.) |
| Clients (overseas) | 100+ |
| Land area (square meters) | 18,000+ |
| Number of equipments (sets) | 200+ |
| Employees | 120+ |
| Engineers | 12+ |
| Available certificates | COC, PVOC, CIQ, SONCAP, C/O, FORM E, FORM A. |
Comprehensive Info of Suspensions:
| Suspension types | German series suspensions, American series suspensions, bogie/boogie suspension series, air suspension series, rigid suspension series, YORK suspensions, ROR suspensions, HENRED suspensions, semi-trailer suspensions, trailer suspensions and agricultural series, etc. |
| Interchangeable brands | BPW suspensions, FUWA suspension, YORK suspensions, ROR suspensions, HENRED suspensions. |
| Replacements | FW880201A, FW880202A, FW880203A, FW880201B, FW880202B, FW880203B, FW880301A, FW880302A, FW880303A, FW880301B, FW880302B, FW880303B, FW860201A, FW860202A, FW860203A, FW860201B, FW860202B, FW860203B, FW860301A, FW860302A, FW860303A, FW860301B, FW860302B, FW860303B, FW86.2/1310/250/BQ6/9, FW86.2/1360/250/BQ6/9, FW86.3/1310/250/BQ6/9, FW86.3/1360/250/BQ6/9. |
| Quantity of installed axles including | 1-axle suspensions, 2-axle suspensions, 3-axle suspensions, 4-axle suspensions, etc. |
| Position of installed axles including | Overslung & underslung suspensions |
| Type of installed axle beams including | Square & round axle beam suspensions |
| Hanger thickness | 6 mm, 8 mm, 10 mm |
| Equalizer thickness | 8 mm, 10 mm, 12 mm |
| Equalizer pin diameter | 50 mm, 60 mm, 70 mm |
| Axis (torque arm pin) diameter | 28 mm, 36 mm |
| Arm bushes | Natural rubber, composite bushings, urethane rubber, used rubber, etc. |
| Leaf springs | 90x16x7 leaves, 90x16x9 leaves, 100x16x10 leaves, 100x12x12 leaves, 100x12x14 leaves, 100x14x12 leaves, 75x13x8 leaves, 75x13x9 leaves, 75x14x8 leaves, 75x14x9 leaves, etc. |
| Colors | Red, black, grey, blue, etc. |
| Optional parts/components | Front hangers, rear hangers, center hangers, equalizers, equalizer pins, equalizer bushes, brackets, axle seats, axises, bushes, leaf springs, U-bolts, bolts, fixed arms, adjustable arms, hanger spacers, reinforcing plates, reinforcing brackets for equalizers, etc. |
| Package | * 30 sets~35 sets of suspensions with leaf springs in one 20 ft container; * 60 sets~70 sets of suspensions without leaf spring in one 20 ft container; * Mixed load with other trailer parts. |
| Standards implemented | IATF 16949-2016, ISO 9001-2015. |
| Payment | TT, LC, DP. |
| Lead time | About 10~15 working days |
| MOQ | 1 set |
WONDEE multi-leaf springs agricultural suspension series:
Single alxle 80 series agricultural suspension-overslung type:
| Item No. | Leaf Spring Thickness(mm) | Capacity(kg) | B(mm) | B1(mm) | L(mm) | Axle Beam 70x70mm | Axle Beam 80x80mm | Axle Beam 90x90mm |
| D(mm) | D(mm) | D(mm) | ||||||
| WAS5001-001 | 4-13mm | 5000 | 760 | 700 | 375 | 290 | 295 | 300 |
| WAS5001-002 | 1-15mm/3-13mm | 5000 | 860 | 800 | 425 | 292 | 297 | 302 |
| WAS6501-001 | 5-15mm | 6500 | 960 | 900 | 475 | 313 | 318 | 323 |
| WAS6501-002 | 6-15mm | 6500 | 1110 | 1050 | 550 | 328 | 333 | 338 |
| WAS7001-001 | 6-15mm | 7000 | 960 | 900 | 475 | 328 | 333 | 338 |
Single alxle 80 series agricultural suspension-underslung type:
| Item No. | Leaf Spring Thickness(mm) | Capacity(kg) | B(mm) | B1(mm) | L(mm) | Axle Beam 70x70mm | Axle Beam 80x80mm | Axle Beam 90x90mm |
| D(mm) | D(mm) | D(mm) | ||||||
| WAS5002-001 | 4-13mm | 5000 | 760 | 700 | 375 | 144 | 139 | 134 |
| WAS5002-002 | 1-15mm/3-13mm | 5000 | 860 | 800 | 425 | 144 | 139 | 134 |
| WAS6502-001 | 5-15mm | 6500 | 960 | 900 | 475 | 144 | 139 | 134 |
| WAS6502-002 | 6-15mm | 6500 | 1110 | 1050 | 550 | 144 | 139 | 134 |
| WAS7002-001 | 6-15mm | 7000 | 960 | 900 | 475 | 144 | 139 | 134 |
2-alxle 80 series agricultural suspension-overslung type:
| Item No. | Leaf Spring Thickness(mm) | Capacity(kg) | Wheelbase(mm) | B(mm) | G(mm) | H(mm) | L(mm) | Axle Beam 70x70mm | Axle Beam 80x80mm | Axle Beam 90x90mm |
| D(mm) | D(mm) | D(mm) | ||||||||
| WAS10001-001 | 4-13mm | 10000 | 1000 | 1760 | 850 | 850 | 375 | 290 | 295 | 300 |
| WAS10001-002 | 1-15mm/3-13mm | 10000 | 1100 | 1960 | 950 | 950 | 425 | 292 | 297 | 302 |
| WAS13001-001 | 5-15mm | 13000 | 1200 | 2160 | 1050 | 1050 | 475 | 313 | 318 | 323 |
| WAS13001-002 | 6-15mm | 13000 | 1350 | 2460 | 1200 | 1200 | 550 | 328 | 333 | 338 |
| WAS14001-001 | 6-15mm | 14000 | 1200 | 2160 | 1050 | 1050 | 475 | 328 | 333 | 338 |
2-alxle 80 series agricultural suspension-underslung type:
| Item No. | Leaf Spring Thickness(mm) | Capacity(kg) | Wheelbase(mm) | B(mm) | G(mm) | H(mm) | L(mm) | Axle Beam 70x70mm | Axle Beam 80x80mm | Axle Beam 90x90mm |
| D(mm) | D(mm) | D(mm) | ||||||||
| WAS10002-001 | 4-13mm | 10000 | 1000 | 1760 | 850 | 850 | 375 | 144 | 139 | 134 |
| WAS10002-002 | 1-15mm/3-13mm | 10000 | 1100 | 1960 | 95 | 95 | 425 | 144 | 139 | 134 |
| WAS13002-001 | 5-15mm | 13000 | 1200 | 2160 | 1050 | 1050 | 475 | 144 | 139 | 134 |
| WAS13002-002 | 6-15mm | 13000 | 1350 | 2460 | 1200 | 1200 | 550 | 144 | 139 | 134 |
| WAS14002-001 | 6-15mm | 14000 | 1200 | 2160 | 1050 | 1050 | 475 | 144 | 139 | 134 |
Single alxle 100 series agricultural suspension-overslung type:
| Item No. | Leaf Spring Thickness(mm) | Capacity(kg) | B(mm) | B1(mm) | L(mm) | Axle Beam 90x90mm | Axle Beam 100x100mm | Axle Beam 110x110mm |
| D(mm) | D(mm) | D(mm) | ||||||
| WAS8001-001 | 6-15mm | 8000 | 910 | 855 | 455 | 380 | 385 | / |
| WAS10501-002 | 7-15mm | 10500 | 990 | 935 | 495 | 395 | 400 | 405 |
| WAS10501-001 | 7-15mm | 10500 | 990 | 935 | 495 | 355 | 360 | 365 |
| WAS12001-002 | 10-15mm | 12000 | 990 | 935 | 495 | / | 445 | 450 |
| WAS12001-001 | 10-15mm | 12000 | 990 | 935 | 495 | / | 405 | 410 |
Single alxle 100 series agricultural suspension-underslung type:
| Item No. | Leaf Spring Thickness(mm) | Capacity(kg) | B(mm) | B1(mm) | L(mm) | Axle Beam 90x90mm | Axle Beam 100x100mm | Axle Beam 110x110mm |
| D(mm) | D(mm) | D(mm) | ||||||
| WAS8001-001 | 6-15mm | 8000 | 910 | 855 | 455 | 170 | 165 | / |
| WAS10501-002 | 7-15mm | 10500 | 990 | 935 | 495 | 170 | 165 | 160 |
| WAS10501-001 | 7-15mm | 10500 | 990 | 935 | 495 | 130 | 125 | 120 |
| WAS12001-002 | 10-15mm | 12000 | 990 | 935 | 495 | / | 165 | 160 |
| WAS12001-001 | 10-15mm | 12000 | 990 | 935 | 495 | / | 125 | 120 |
2-alxle 100 series agricultural suspension-overslung type:
| Item No. | Leaf Spring Thickness(mm) | Capacity(kg) | Wheelbase(mm) | B(mm) | G(mm) | H(mm) | L(mm) | Axle Beam 70x70mm | Axle Beam 80x80mm | Axle Beam 90x90mm |
| D(mm) | D(mm) | D(mm) | ||||||||
| WAS16001-001 | 6-15mm | 16000 | 1270 | 2180 | 1060 | 1065 | 455 | 380 | 385 | / |
| WAS21001-001 | 7-15mm | 21000 | 1350 | 2340 | 1140 | 1145 | 495 | 395 | 400 | 405 |
| WAS21001-002 | 7-15mm | 21000 | 1350 | 2340 | 1140 | 1145 | 495 | 355 | 360 | 365 |
| WAS21001-003 | 7-15mm | 21000 | 1480 | 2470 | 1205 | 1210 | 495 | 395 | 400 | 405 |
| WAS21001-004 | 7-15mm | 21000 | 1480 | 2470 | 1205 | 1210 | 495 | 355 | 360 | 365 |
| WAS24001-001 | 10-15mm | 24000 | 1350 | 2340 | 1140 | 1145 | 495 | / | 445 | 450 |
| WAS24001-002 | 10-15mm | 24000 | 1350 | 2340 | 1140 | 1145 | 495 | / | 405 | 410 |
| WAS24001-003 | 10-15mm | 24000 | 1480 | 2470 | 1205 | 1210 | 495 | / | 445 | 450 |
| WAS24001-004 | 10-15mm | 24000 | 1480 | 2470 | 1205 | 1210 | 495 | / | 405 | 410 |
2-alxle 100 series agricultural suspension-underslung type:
| Item No. | Leaf Spring Thickness(mm) | Capacity(kg) | Wheelbase(mm) | B(mm) | G(mm) | H(mm) | L(mm) | Axle Beam 70x70mm | Axle Beam 80x80mm | Axle Beam 90x90mm |
| D(mm) | D(mm) | D(mm) | ||||||||
| WAS16002-001 | 6-15mm | 16000 | 1270 | 2180 | 1060 | 1065 | 455 | 170 | 165 | / |
| WAS21002-001 | 7-15mm | 21000 | 1350 | 2340 | 1140 | 1145 | 495 | 170 | 165 | 160 |
| WAS21002-002 | 7-15mm | 21000 | 1350 | 2340 | 1140 | 1145 | 495 | 130 | 125 | 120 |
| WAS21002-003 | 7-15mm | 21000 | 1480 | 2470 | 1205 | 1210 | 495 | 170 | 165 | 160 |
| WAS21002-004 | 7-15mm | 21000 | 1480 | 2470 | 1205 | 1210 | 495 | 130 | 125 | 120 |
| WAS24002-001 | 10-15mm | 24000 | 1350 | 2340 | 1140 | 1145 | 495 | / | 165 | 160 |
| WAS24002-002 | 10-15mm | 24000 | 1350 | 2340 | 1140 | 1145 | 495 | / | 125 | 120 |
| WAS24002-003 | 10-15mm | 24000 | 1480 | 2470 | 1205 | 1210 | 495 | / | 165 | 160 |
| WAS24002-004 | 10-15mm | 24000 | 1480 | 2470 | 1205 | 1210 | 495 | / | 125 | 120 |
Workshops of WONDEE Autoparts semi trailer suspensions:
(Raw material workshops, Components workshops, Mechanical suspension processing workshops, Semi trailer suspensionAssembly workshops, Painting line)
Processes & equipment of WONDEE Autoparts semi trailer suspensions:
(1. Steel Plate Material→ 2. Steel Plate CNC Automatic Cutting→ 3. Hangers punching→ 4. Hangers Forming→ 5. Hangers Welding→ 6. Sleeve(A & B) Welding→ 7. Shot Peening→ 8. Painting→ 9. Laser marking→ 10. Assembling→ 11. Packing→ 12. Warehousing)
Products and logistics of WONDEE Autoparts semi trailer suspensions:
(Mechanical suspension final production, Suspension hangers, Components of semi trailer suspensions, Suspension warehousing, Suspension packing, trailer suspension container loading)
Other types of WONDEE Autoparts semi trailer suspensions:
(Germany BPW type mechanical suspension, Germany SAF type mechanical suspension, American FUWA type suspension with square beam, American FUWA underslung type suspension with square beam, American FUWA type suspension with round beam, American FUWA underslung type suspension with round beam)
Other types of WONDEE Autoparts semi trailer suspensions:
(YTE casting type suspension, ROR casting type suspension, Henred Fruehauf type suspension, Agricultural trailer suspension)
Components & spare parts of WONDEE Autoparts semi trailer suspensions:
(Font hangers, Middle hangers, Rear hangers, Supension equalizers, Equalizer pins, Leaf springs, Fix torques, Adjustable torques, U-bolts, etc.)
Besides trailer mechanical suspensions, WONDEE Autoparts also supply different types of semi trailer components as below: