DescriptionWONDEE forging fifth wheels link semi-trailers with towing trucks, tractors, or dollies. Available in 2″ (50 mm) and 3.5″ (90 mm) king pin sizes, they suit heavy-duty applications. Camper trailers also use this configuration for pickup towing.Key FeaturesAutomotive quality management system: IATF16949-2016Quality management system: ISO9001-2015Technical standards: GB/T 31879-2015, GB/T 4606, GB/T 4607Warranty: 18 months from shipping dateRaw material: Q345 pressed steel or cast steel top plate; forged alloy steel lockTop plate: Pressed steel with hardened front lock areaLock: Forged, machined, heat-treated alloy steel jaw with adjustable wearOperating handle: Easy pull handle with secondary locking deviceMounting bolt: ISO standard bolt pattern with elongated holesMaintenance: Simple 4-part locking mechanism for easy serviceLoading capacity: Exceeds European standardsGrease: Special high-efficiency grease for prolonged service lifeAnnual sales: 50,000 unitsOverseas markets: 30 countries including Thailand, Australia, Russia, UAE, and moreClients overseas: 40 Factory area: 25,000 m² with 200 equipment setsEmployees: 100 including 6 engineersCertificates: FORM E, FORM A, COC, BV, SGS, SASOSpecificationsProduction SeriesForging 2″, Forging 3.5″, Casting 2″, Casting 3.5″Suitable King Pin2″, 3.5″, 50, 90 mmCapacity 2″ (50 mm)Vertical Load 20,000 kg; Gross Combination Weight 65,000 kg; D-Value 152 kN; U-Value 20 TonneCapacity 3.5″ (90 mm)Vertical Load 30,000 kg; Gross Combination Weight 80,000 kg; D-Value 200 kN; U-Value 30 TonneMounting Height150-250 mm or 7″-11″Slide Plate Travel8″, 12″, 16″, 24″, 36″, 48″Swing TypeSingle or Double SwingInterchangeable BrandsJOST, SAF-HOLLAND, Fuwa fifth wheelsColorsShiny black, dark black, grey, blue, red, customizedLead Time15–25 working daysMOQ10 pcsPayment TermsTT, LC, DPForging Type Fifth Wheel SeriesItem No.Rated Vertical Load (kg)D-Value (kN)Lengthways Swing Angle (°)Installation Height (mm)King Pin SizeWeight (kg)FW50-FS012000015212150.550 (2″)126FW50-FS02200001521617350 (2″)130FW90-FS01250001821216590 (3.5″)140FW90-FS02250001821517590 (3.5″)145Casting Type Fifth Wheel SeriesItem No.Rated Vertical Load (kg)D-Value (kN)Lengthways Angle (°)Transverse Swing Angle (°)Installation Height (mm)King Pin SizeWeight (kg)FW50-C0125000176150167.550172FW50-C3038C12800017015019550229FW90-C3038C13600026015019590229FW90-C3038G14000026015729090300Components & MaintenanceWONDEE supplies repair kits and all major components for fifth wheels. The locking system contains only four moving parts, simplifying maintenance, replacement, and repairs. Use high-efficiency grease to prolong service life across various conditions.
