Single Acting Hydraulic Cylinder for Dock Leveler

• Certification: GS, CE, ISO9001
• Pressure: Low Pressure
• Work Temperature: Low Temperature
• Acting Way: Single Acting
• Working Method: Straight Trip
• Adjusted Form: Switching Type
• Model NO.: EM3699
• Structure: Piston Type
• Material: Carbon Steel
• Transport Package: Woodenbox
• Specification: Stroke 100mm-1000mm
• Trademark: Eonmach
• Origin: Shandong China
• HS Code: 84122100
• Production Capacity: 60000picece/Year

Product Description

Single Acting Hydraulic Cylinder for Dock Leveler
 

1. Cylinder Tube 
(1)Material: Standard using ASTM 1020(steel 20), ASTM 1035(steel 35), ASTM 1040(steel 40) with Ra0.4 after honing and rolling.
(2)Tube choosing: standard is cold drawn seamless steel tube, if need hot rolling seamless steel tube, please inform us before quotation. 
(3)Advice: Low pressure can use steel 20, high pressure can use steel 45. If customers have other special material request, can talk with us before quotation.

2. Piston Rod
(1) Material: Standard using ASTM 1035(steel 35) and ASTM 1045(steel 45).
(2) Piston Rod choosing: Solid piston rod and hollow piston rod (one of hollow piston rod end needs an air vent for welding and heating)
(3). Process: Quenching and tempering to reach hardness 229-285HB after roughing machining, if necessary, we also can reach hardness 45-55HRC after high frequency quenching. Standard chrome plated thickness is 25μm(if need more thickness, please inform us before quotation).

3. Piston
(1) Material: Standard material is wear-resisting cast iron, gray iron(HT300, HT350), steel and aluminum alloy, forging group II.
(2) The concentricity tolerance between piston and piston rod is 0.03mm.

4. Cylinder Cover
(1) Material: Cast iron for low pressure, gray iron HT300 for middle-low pressure. ASTM 1035(steel 35), ASTM 1045(steel 45) for middle-high pressure.
(2) Cylinder Cover choosing: It is better to use cast iron when cylinder cover also same function as guide sleeve, and melt brass, bronze or other wear-resisting material on the guide surface. If using the construct of pressing guide sleeve into cylinder cover, then the guide sleeve material should use wear-resisting cast iron, brass or bronze.

5. Seals
(1)Seals choosing: Good seal performance, low friction coefficient and small installation space of O-ring type Seals for low pressure, standard use our domestic brand. Middle-high pressure seals, we will use Y type, U type or V combined seals. 

(2) Material:

Material	NBR	HNBR	PU	FKM/FPM	FFPM	FFPM(Special)	PTEF
Limited  Temp.	-30ºC~110ºC	-30ºC~135ºC	-30ºC~120ºC	-20ºC~200ºC	-20ºC~240ºC	-20ºC~320ºC	-55ºC~260ºC

. FAQ .

Q1: Do you accept OEM manufacturing?

A1: Yes! We do accept OEM manufacturing. We will quote you the exact price and make the exact cylinder according to your specification and drawing.
 

Q2: Can we design our own package or print our own logo?

A2: Yes! Package and logo will be made acording to your requirements. 
 

Q3: Could we get small quantity samples?

A3: Yes! We understand the quality test is important and we are glad to make the sample for you. The MOQ is 1pcs.
 

Q4: How long is the production time?

A4: Generally the production time is 25days. 
 

 Q5: What is the warranty?

 A5: 1year against B/L date.