Bogie Suspension Part Leaf Spring

• After-sales Service: Yes
• Warranty: 1 Year
• Material: Stainless Steel
• Certification: ISO/TS16949, ISO9001
• Car Make: Volkswagen, Benz, Hyundai, Nissan, Volvo, Mazda, Kia
• Position: Rear
• OEM: No
• Type: Suspension Spring
• Name: Conventional Leaf Spring
• Surface Treatment: Peening & Painting
• Components: Leaf, Clip, Center Bolt
• Transport Packing: Pallets
• Model: Semi Trailer, Truck
• Transport Package: Pallet
• Specification: 90X16
• Trademark: WONDEE
• Origin: China Wondeeauto
• Production Capacity: 100000 Tons/Year

Product Description

 
1. On Wondee leaf springs Since 1999
2. 20 years experience on semi trailers and components
3. 1 year Quality warranty
4. ISO, TS16949 Certificate
5. 7x16 hours service
6. Customized ODM OEM leaf springs available 
7. 4 Global Offices

A leaf spring is the most widely used elastic element in automobile suspensions.

It is an approximate equal strength steel beam composed of several alloy spring sheets of equal width and unequal length. Its main function is to transmit all forces and moments between wheels and frames, relax impactive load caused by the road surface and realize vehicle guidance, make vehicles normal drive.

Leaf springs are widely applied to suspensions for heavy duty trucks, light duty trucks, pick-ups, cars, skeletal trailers, lowbed trailers, flatbed trailers, oil tank trailers, van trailers, wood transport trailers, gooseneck trailers, agricultrucal vehicles, etc. Classification of Leaf Springs include Conventional leaf springs, parabolic leaf springs, Z type air linkers, TRA leaf springs, trailer leaf springs,light duyt trailer spring, boat trailer springs, pickup leaf springs, semi trailer springs, truck springs, farming/agricultural trailer springs, sprung drawbar, bus springs, bogie/boogie springs, heavy truck springs, etc.

WONDEE Leaf Springs Features

QC management system	Implementing IATF 16949-2016
Services quality management system	Implementing ISO 9001-2015
Product technical standards	Implementing GB/T 19844-2018, GT/T 1222-2007
Warranty	12 months since shipping date
Quality testing by	Stiffness Testing Machine, Arc Height Sorting Machine, and Fatigue Testing Machine, etc.
Raw material	Top 3 steel mills in China
Flat bar cutting & center hole punching	By fully automatic CNC cutting & punching production line Center hole positioning tolerance: <±0.2 mm Cutting length tolerance: <±2 mm
Leaf spring eye rolling	Use automatic CNC leaf eye rolling machines, robot assistance, dedicated molds   and toolings to guarantee below features: 1) Perpendicularity tolerance <1% x leaf width 2) Parallelism tolerance< 1% x leaf width 3) Eye diameter tolerance<±0.5 mm 4) Width tolerance of leaf end: -0.5mm ~ 0 mm
Leaf tapering/parabolic rolling	Use automatic CNC parabolic taper rolling machines, robot assistance, dedicated   molds and toolings to guarantee below features: 1) Taper thickness allowance: <±0.25mm 2) Width tolerance of leaf end: -0.5mm~0 mm
Heat treatment lines	1) Heating line: The large-scale automatic CNC temperature control heating furnace not only ensures the heating time but also ensures that the temperature in the furnace reaches the   design value (the temperature difference is within ±5 degrees), ensures that the leaf springs are heated evenly, and avoids excessively high or low temperatures, thereby ensuring the strength of the leaf springs and the service life limit meets the Crequirements. 2) Quenching & camber making line: Use special CNC quenching equipment, mechanical oil, camber making machines and robot assistance to ensure that the quenching temperature, quenching time and cambers reach the design requirements. 3) Tempering line: A dedicated CNC tempering production lines are used to ensure that the tempering temperature and the tempering time meet the design requirements.  So as to ensure the strength and service life of leaf springs.
Camber tolearance (mm)	≤±6 (Exceed spring industry standard ±7)
Fatigue life (cycles)	>120,000+( Exceed spring industry standard 100,000 cycles)
Hardness	41HRC~48HRC
Shot peening	Using special leaf spring shot blasting machines, the new and used steel shots are   mixed for use. On the one hand, the new steel shots increase the deformation of the springs. On the other hand, the used steel shots have no edges and corners to avoid microcracks on the surface of the springs, thereby increasing the fatigue life.
Painting	Normal painting and E-coating are available. *E-coating finish line: paint film is uniform and plump, with strong adhesion and high anti-corrosion performance, to avoid dripping, flow marks, stagnation marks and other problems. * Salt spray test >100 hours
Marks/stickers	* Clients' logo are supported  * Design marks or stickers for clients, free of charge
Other inspection equipment	*Metallographic Microscope, *Spectrophotometer *Carbon Furnace *Carbon & Sulfur Combined Analyzer, and  *Hardness Tester, etc.
Oversea sales volume (tons)	14,000+
Overseas market	30+ countries ( German, France, Poland, Portugal, Russia, Filand, USA, Canada, Mexico, Thailand, Vietnam, Malaysia, Singapore, The Philippines, Indonesia, Brazil, Bolivia, Argentina, Ecualor, Chile, Peru, Guatemala, Panama, Egypt, South Africa, Nigeria, Tanzania, etc)
Clients (overseas)	91+
Land area (square meters)	30,000+
Tons of annual output	35,000+
Number of equipments (sets)	200+
Number of employees	260+
Number of engineers	10+
Available certificates	COC, PVOC, CIQ, SONCAP, BV, C/O, FORM E, FORM A.

Comprehensive Info of  Leaf Spring:

Leaf spring types	Conventional leaf springs, parabolic leaf springs, Z type air linkers, TRA leaf springs, trailer leaf springs, boat trailer springs, pickup leaf springs, semi trailer springs, truck springs, farming/agricultural trailer springs, sprung drawbar, bus springs,   bogie/boogie springs, heavy truck springs, light duty trailer springs/small springs, etc.
Materials grade:	SUP7, SUP9, SUP9A, SUP10, SUP11, SUP11A and SUP12 60Si2Mn, 55CrMnA, 60CrMnBA, 50CrVA, 60CrMnBA, 60Si2CrA 61SiCr7, 55Cr3, 60CrB3, 51CrV4 9260, 5155, 5160, 6150, 51B60, 9254
Spring width range (mm)	44.5~125 mm
Spring thickness (mm)	6~50 mm
Interchangeable brands (make)	MERCEDES BENZ, BPW, , TOYOTA, HONDA, NISSAN, MAN, HOWO, , , DAF, MAN, , , SISU, HYUNDA, TATRA, MAZ, SAF, ROR, FRUEHAUF, HINO, YORK, FUWA, CIMC, ETC.
Colors	Red, shinning black, dark black, grey, blue, as required.
Optional parts, components, & related parts	Centor bolts, clamps,  Copper bushes, bi-metal bushes, steel rubber bushings, rubber bushes, nylon bushes.  U-bolts, brackets, pins.
Package	Fumigated wooden pallets, steel pallets, as required.
Standards implemented	IATF 16949-2016, ISO 9001-2015, GB/T 19844-2018, GT/T 1222-2007
Payment terms	TT, LC, DP.
Lead time	About 25~35 working days.
MOQ	60 pcs

 

WONDEE hot selling leaf springs OEM numbers:

S/N	OEM No.	S/N	OEM No.	S/N	OEM No.	S/N	OEM No.	S/N	OEM No.
1	SH63-1430-FA	31	8-97092-445-1-FA	61	911B-0508-R2	91	SCN-1421061-RH	121	41310-80010-RA
2	55020-1T400-HA	32	8-94118-505-1-HA	62	911B-1102A-F1	92	SCN-1303972	122	55020-Z5106-RA
3	MC031096-HA	33	8-97073-224-M-HA (5L)	63	48220-5891A-R1	93	SCN-1421060-LH	123	48210-3V610-RA
4	54010-01Z17-FA	34	97073-225M-HA (9L)	64	352-320-1302-F1	94	XCMG- 9020-1780-F1	124	55020-G6105-RA
5	48120-5380B-FA	35	8-97073-224M-RA	65	FCP37-R1	95	XCMG- 9020-1780-F2	125	8-97070-508M-RA
6	1-51110-051M-FA	36	48110-60391W-FA	66	FCP37A-R1	96	XCMG- 9020-1780-F3	126	MC114890-RA
7	1377695-RA	37	MB294032-FA	67	48210-60742	97	MK383732-FA	127	48210-87C14-HA
8	257888-FA	38	54010 31Z61-FA	68	48210-8891A-R1	98	3V610-HA 5L	128	8-97070-508M-HA
9	29FDZ1-02010 FA	39	352-320-1302-FA	69	70×11×1300 M12.5	99	MC114890 RA	129	HNIT300-FA
10	352525	40	48110-3V790-FA	70	60×7×1300 M10.5	100	CW53-02Z61-FA	130	TD50M3-RA
11	CW53-02Z61HD-FA	41	621 320 0002 RA	71	HOWO90161800	101	SH63-1430-FA-HD	131	55020-Z2302-RA
12	48220-3430-HA	42	48210-2341	72	833150P-R1	102	227-M-FA-0	132	55010-C1301-HA
13	55020-Z9001-HA	43	51310-7800-RA	73	833150P-R2	103	3W920-FA-3L	133	48210-5180B-HA
14	55020-Z3001-RA	44	54010-Z3007-FA	74	833150P-R3	104	3V790-RA+HA 3L	134	720612-TA-12.5
15	624 320 0006 RA 16L	45	48110-5570A-FA	75	55020-Z5176-H1	105	48120-5380B-M20 FA	135	48220-3360B
16	54010-G5500MH-FA-HD	46	101199SC-RA	76	48110-5350A-F2	106	W023-34-010B-FA	136	48220-3430A-RA
17	1915-90-30-41	47	48120-4340-FA	77	48110-5350A-F1	107	8-94118-505-1-RA	137	CAMC RA
18	MK 382877R	48	1-51340-010-0-HA	78	48210-2002B-R1	108	8-94101-345-0-FA	138	29AD-02010-B FA
19	48110-87338A-FA	49	0178-01-TA	79	48210-5180B-R	109	54010-1T700-FA	139	0022-RA 2L
20	48210-87C37A-RA	50	54010-Z2006A-FA	80	48220-3430A-R2	110	265627-FA	140	55022-1T400-RA
21	48210-87C14-RA	51	48110-8780A-FA	81	48210-5180B-R2	111	W782-28-010-RA	141	21200078 TA
22	48150-1890A-FA	52	54011-99117-FA	82	269087-R2	112	W782-34-010-FA	142	257653 RA
23	48210-830T0-RA	53	48150-2341A-FA	83	470131-R1	113	8-97092-450-M-FA	143	257654 RA
24	8-94343-130-0-RA	54	48150-2341A-FA-HD	84	470131-R2	114	535173-RA	144	257847 RA
25	8-94343-082-M-FA	55	55020-Z0073A-RA	85	09475-01-T1	115	1-51300-524-0-RA	145	972015M-TA
26	MK310031-FA	56	257624M-R1	86	EZ9K869691101-F1	116	1-51130-433-0-FA	146	257867 FA
27	48110-87334-FA	57	54010-01Z17-F3H	87	EZ9K869691101-F2	117	1-51300-524-0-HA
28	TYT 48210-OK020HD	58	54010-NB100-F3	88	EZ9K869691102-F1	118	MB339052-RA
29	8-97092-449 FA	59	MK306251-R1	89	EZ9K869691102-F2	119	MR448147A-RA
30	48110-3V700-FA	60	911B-0508-R1	90	EZ9K869691102-F3	120	MC110354-FA

Workshops of WONDEE Autoparts leaf springs :


Processes & equipment of WONDEE Autoparts leaf springs :
(1. Flat bar cutting and hole punching→ 2. Spring ends processing→ 3. CNC automatic eye rolling→ 4. Spring heating→ 5. Spring quenching→ 6. Spring tempering→ 7. Spring shot peening→ 8. Leaf spring assembling→ 9. Spring e-painting)

QC equipment of WONDEE Autoparts leaf springs :

(Material Metallographic analysis, spring spectral analysis, raw material inspection, eyes inspection, spring camber inspection, spring hardness test, salt spray test, fagigue life test, spring rate test)

Warehousing & Logistics of WONDEE Autoparts leaf springs: 

Wondee leaf springs Specification:

1.Leaf spring raw material source: Our spring flat bar is from the top 1 steel material supplier in China.
2.Color: Red, shinning black, dark black, grey, blue leaf spring.
3.Materials: 60Si2Mn,SUP6,SUP7,SUP9,SUP9A,SUP10,SUP11 and SUP11A are available.
4.Certificate: ISO9001; TS16949; COC; PVOC; CIQ; SONCAP; BV; C/O; FORM E.
5.Suitable for Truck, trailer and bus leaf springs : ,MAN,,TOYOTA,BPW,RANDON,UAZ ,MERCEDES- BENZ,DAF,,HOWO,CIMC
6.Our products are popular in the worldwide market, including North American, South American, European, African
  Wondee leaf spring has reached more than 100 countries.


Wondee leaf springs Advantage:
 
01.No Rust problem + Perfect looking
Method:
>> Single leaf by electrophoretic painting(Optional)
>> Sembling spring by electrostatic painting(Optional)
Benefits for customers
>> Salt spray testing > 500 hours beat general industrial level 200 hours,avoid rust possiblity
>> Perfect-looking -- uniform painting, complete painting, no scratch
 
02. Pre shot-peening
Method:
>> Make shot peening under rated capacity
Benefits for customers
>> 180,000 times fatigue life beat general level 150,000 times; 
>> bear heavier capacity and use longer time; 
 
03. Pre-pressing and adjust
Method:
>> Make pre-pressing under rated capacity 
>> Select camber by computer
Benefits for customers
>> Guarantee reasonable camber and keep smallest tolerance, 
>> select out leaf spring whose camber is not qualified




Conventional OEM Steel Truck Trailer Leaf Spring Production Process:

FAQ:
 
Q: How do you guarantee quality?
A: We take quality inspect records from raw material to finished product.
   The former department bear 100% responsibility for next process.
 
Q: Can you produce if we have samples only?
A: Our technical ability is strong enough to deal with different types of spring.
   Sample drawing and customers' interests will be protected well.
 
Q: Is it possible to have sample for quality testing?
A: Same or similar sample are available for free.
 
Q: What is your MOQ?
A: For common material size, MOQ requires 30~50 pcs;
   For special material size, Moq requires 3 ton or more;
 
Q: What is your terms of payment?
A: T/T, L/C, Western Union,
 
Q: How do customers evaluate WONDEE?.
A: I must say that you have solved this problem very well.
   It is always best to be open and solve these kind of problems in best possible way for both of us.

Components & spare parts of WONDEE Autoparts leaf springs 




Besides trailer Leaf springs  , WONDEE also Supply semi trailer parts as belows:
 

Semi-trailers:
Skeletal semi-trailers	flatbed semi-trailers	container semi-trailers	low bed semi-trailers
van semi-trailers	fuel tank semi-trailers	logging semi-trailers	Fence Semi trailers
Spare Parts:
Leaf spring,	flat bar,	Chassis,	H-beam
Air suspension,	mechanic suspension,	bogie	Coupling,
Axle	air chamber,	slack adjuster	hitch.
Brake drum	brake shoe	brake lining	wheel hub
tubeless wheel rims,	tube wheel rims,	Aluminum wheel rim	wheel bolt
u bolt	center bolt	hub bolt	twist lock,
Turntable,	5th wheel,	landing gear,	king pin,