Skived&roller burnished Cylinder Tube

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honed tube skiving&roller burnished tube seamless honed tube honed tube for hydraulic cylinder honed steel tube honed steel tube for hydraulic cylinder seamless honed tube for hydraulic cylinder

Product Description

Commodity: honed or skived&roller burnished tube for hydraulic cylinder barrel
Size range: 40mm*32mm-325mm*300mm
Available Steel grade:

DIN:	ST52, ST52.3, ST52.4
BS:	E355, E470, 20MnV6
ASTM:	1026, 1045, 1528, 1541
JIS:	STKM 13C, S45C
GB:	45#, 16Mn,25Mn,27SiMn

4. Manufacture Method: Hydraulic cold drawn

5. Delivery Condition: Stress relieved annealing

6. Bore treatment: honing or skiving&roller burnishing

7. Bore roughness: Ra0.35um max for honed ID, Ra0.25um max for skived&roller burnished ID.

8. ID Tolerance:

ID Tolerance level of Honed Tubes
ID Range	H7	H8	H9	H10
18<ID≤30	+0/+0.021	+0/+0.033	+0/+0.052	+0/+0.084
30<ID≤50	+0/+0.025	+0/+0.039	+0/+0.062	+0/+0.100
50<ID≤80	+0/+0.030	+0/+0.046	+0/+0.074	+0/+0.120
80<ID≤120	+0/+0.035	+0/+0.054	+0/+0.087	+0/+0.140
120<ID≤180	+0/+0.040	+0/+0.063	+0/+0.100	+0/+0.160
180<ID≤250	+0/+0.046	+0/+0.072	+0/+0.115	+0/+0.185
250<ID≤315	+0/+0.052	+0/+0.081	+0/+0.130	∕

9. Typical size of Honed or skived&roller burnished tube

Regular sizes of hydraulic cylinder tubes
33*25	70*60	90*80	112*100	139.7*114.3	190*160	265*215
35*25	72*60	92*80	115*100	140*120	184.15*165.1	245*220
40*32	75*60	95*80	118*100	145*120	200*170	270*220
42*32	73*63	100*80	120*100	133.35*120.65	200*180	273*220
45*35	75*63	100*85	125*100	140*125	210*180	254*228.6
50*40	76*63	101.6*88.9	127*100	150*125	220*190	260*230
55*40	76.2*63.5	100*90	114.3*101.6	152*125	230*200	270*230
55*45	80*65	102*90	127*101.6	150*130	235*200	275*230
60*50	80*70	105*90	120*105	160*140	240*200	280*230
63*50	82*70	108*90	125*110	170*140	245*200	300*250
65*50	85*70	110*90	130*110	170*150	250*200	325*240
70*50	90*75	105*95	140*110	180*150	260*210	325*260
63.5*50.8	88.9*76.2	110*100	127*114.3	180*160	260*215	325*280

10. Additional service: OD machining, polishing, CNC turning as per drawing can be negotiated for supply.

11. Advantage: Honed tube or skived&roller burnished tube are tubes with honed ID or skived&roller burnished ID. You can choose honing or skiving&roller burnishing here. For honed tubes, the internal surface roughness is always like Ra0.1um-Ra0.35um, but it doesn't change hardness of internal surface. Skived&roller burnished tubes have a much better roughness like Ra0.05um-Ra0.20um, but the hardness of internal surface will be much higher and the internal stress happens during roller burnishing procedure.

ADDITIONAL INSTRUCTIONS

1. MOQ: Generally MOQ can be 2-3 tons/size for tubes with OD below 250mm, and 5 tons/size for tubes with OD above 250mm for regular steel grades like ST52, E355, STKM 13C,1026. If special grades like E410, E470 or alloy steel tube, MOQ should be 5 tons/size whichever size you need.

2. Delivery Time: 20-40 days depending on the steel grade and size.

3. Warranty & Guarantee: Warranty & guarantee period is 6 months since we deliver the tubes, and we are not responsible for quality problem caused by wrong unloading or storage after shipment. Third party or customer's inspection before shipment is welcome.

4. Payment Method: Flexible payment method like T/T, L/C,D/P are available depending on our evaluation.

5. Quality Control: We use raw material with cylinder quality from leading steel mills. We have advanced production and inspection facilities in house to control the quality.

COMPANY PROFILE:

We are a manufacturer of cold drawn steel tubes including:

Seamless precision tubes as per EN 10305-1:	OD upto 325mm, wall thickness upto 35mm
Precision welded tubes as per EN 10305-2:	OD upto 356mm, wall thickness upto 15mm
Seamless mechanical tubings as per ASTM A519:	OD upto 325mm, wall thickness upto 35mm
welded mechanical tubings as per ASTM A512:	OD upto 356mm, wall thickness upto 15mm
Hydraulic cylinder tube:	Size Range: 50mm40mm-325mm280mm
Cold drawn seamless SHS:	70mm70mm-250mm250mm with thickness upto 20mm
Cold drawn seamless RHS:	80mm60mm-300mm200mm with thickness upto 20mm

What We Offer

Quality Raw Material

We use high quality raw material from leading manufacturers.
Strict Quality Control

Strict quality control before, during and after production. Any quality dispute or problem will be immediately reported and handled internally.
Flexible Production Arrangment

To ensure both delivery time and customer experience.
Customization

In addition to steel tube we produce, we also provide services like OD machining, OD polishing, ID honing or skiving&roller burnishing, initial CNC turning.

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Packing & delivery

We have established strict quality control circle covering raw material receipt, in-production inspection, and finished product control, and inspection&test records will be kept in our management system.

Packaging

For each piece of tube we delivered, Mill Test Certificate will be issued, and quality guarantee will be given. We give a period of 1-3 months for claim of quality dispute and problems after cargo receipt, depending on actual situation.