Durable Sy330 Sy335-9 Sy360 Sy365 Sy75 Sy465 Excavator Hydraulic Boom Arm Bucket Cylinder for Excavator Oil Cylinder Assembly Spare Parts .These high-performance spare parts are engineered for excellence and reliability.
As a leading manufacturer and factory of hydraulic cylinders in China, Quanzhou Zhongkai Machinery Co., Ltd. offers tailor-made solutions to meet your specific hydraulic cylinder requirements. Trust in our expertise to deliver customized products designed to satisfy every unique need.
- Tailor-Made Sizes for Every Demand
- Vibrant and Customizable Colors to Suit Your Aesthetic
- Innovative Designs to Elevate Your Equipment
- Specially Packaged to Your Specifications
- Comprehensive Customization to Meet All Requirements
Model: |
All brand model are meet your demands |
Name : |
Boom Cylinder,Bucket Cylinder,Arm Cylinder |
Applicable Industries: |
Machinery Repair Shops, Retail, Construction works |
Application: |
Excavator ,Loader,Tractor |
Warranty: |
12Months,6Months |
Material: |
Steel |
Supply Ability: |
500 Piece/ per Month |

Construction equipment demands hydraulic cylinders that are not only robust but also dependable. Designed to withstand intense usage in challenging environments, these cylinders are essential to prevent expensive downtimes, avoid project delays, and eliminate maintenance issues.
Our Advanced Production Process Includes:
Material Selection → Precision Tempering → Cylindrical Lathe Cutting → High-Frequency Quenching → Cylindrical Grinding → Durable Hard Chrome Plating → External Grinding
Post-tempering and high-frequency surface quenching, the external surface benefits from a layer of hard chrome.
Plating ensures a hard, smooth finish both internally and externally.

Explore Our Extensive Model List:
CATERPILLAR |
205/205B/205LC |
211/211C |
213/213B/213LC |
215/215B |
215D/215LC |
219/219D/219LC |
225/225B |
225D/225LC |
227 |
229/229D |
231D/231DLC |
235/235B |
235C/235D |
245/245B |
279C |
289C |
299C |
308C |
311/311B/311C |
312/312B |
312C/312D |
313B |
314C/314D/314B |
315/315C/315L |
317/317BL/317N |
318BL/318C |
319E |
320BL/320C |
320D/320L |
321C |
322/322B |
322L/322N |
323DL/323DLN |
324D/324DL |
324DLN |
325/325B |
325CL/325D |
325L |
330/330D |
330D2L/330L |
336D/336DL |
336EL |
345B/345D |
345DL |
349DL/349EL |
350 |
365BL/365CL |
374D |
375/375L |
385B/385C |
390 |
E110 |
E120B |
E140 |
E180 |
E200B |
E240 |
E300 |
E450 |
E650 |
EL240 |
EL300 |
D3/D3B/D3C |
D4/D4C/D4D |
D4E/D4H/D4G |
D4K |
D5/D5B/D5C |
D5G/D5H |
D5K/D5M/D5N |
D6/D6B/D6C |
D6D/D6H/D6K |
D6M/D6N/D6R |
D6T/D7/D7E |
D7F/D7G/D7H |
D7R/D8/D8H |
D8L/D8K |
D8N/D8R/D8T |
D9D/D9E/D9G |
D9H/D9L/D9N |
D9R |
D10N/D10R |
D10T |
D11N/D11R |
D11T |
E30 |
E45 |
E305 |
E304CR |
E305MR |
E305.5 |
E307/E308 |
E40 |
E70B |
CAT30 |
CAT301.8 |
CAT302.5 |
CAT303/304 |
CAT301.5 |
CAT301.8 |
CAT302.5C |
CAT303 |
CAT303.5CCR |
CAT303CCR |
CAT304CCR |
CAT304.5 |
CAT304 |
CAR305CCR |
CAT305 |
CAT306 |
CAT307 |
931/931LGP |
931B/931C |
933/933C |
933F/933G |
935B/935C |
941/941B |
943/943LGP |
951B/951C |
953/953C |
955C/955K/955L |
963/963B |
963C/963D |
973 |
977/977H |
977K/977L |
983/983B |
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VOLVO |
C13 |
EC13XR |
EC15/20 |
EC25 |
EC27C |
EC30 |
EC50 |
EC55 |
EC70 |
ECR28 |
ECR30 |
ECR48C |
ECR58PLIUS |
ECR88 |
ECR88PLUS |
EC130 |
EC140 |
EC150 |
EC160 |
EC180 |
EC200 |
EC210 |
EC229 |
EC230 |
EC240 |
EC250 |
EC280 |
EC290 |
EC300 |
EC330 |
EC340 |
EC360 |
EC380 |
EC420 |
EC450 |
EC460 |
EC480 |
EC620 |
EC650 |
EC700 |
EC900 |
ECR235 |
H10B |
H11 |
H12 |
H14 |
H16 |
H25 |
H5/H7/H9 |
|
HITACHI |
EX08 |
EX12/EX15 |
EX20/EX22 |
EX25/EX30 |
KH300 |
EX40-1 |
EX40-2 |
EX45 |
EX50 |
EX50URG |
EX55 |
EX60-1 |
EX60-2/3 |
EX60-5 |
EX70 |
AX40U-2 |
AX40U-3 |
AX40U-4 |
UH025-7 |
UX30 |
ZX16-3 |
ZX17/ZX17U-2 |
ZX18 |
ZX22U-2 |
ZX23 |
ZX25 |
ZX30U |
ZX33 |
ZX40ZX48ZX50 |
ZX85USB LC-3 |
ZAXIS110 |
ZAXIS120 |
ZAXIS135 |
ZAXIS15/16/18/25/30 |
ZAXIS35/35U2/40U2 |
ZAXIS80 |
EX100 |
EX120 |
EX130 |
EX135 |
EX150 |
EX160 |
EX200 |
EX210 |
EX220 |
EX267 |
EX270 |
EX285 |
UH10/12 |
UH101 |
UH121/122/123 |
UH14-2 |
UH143 |
UH171/172 |
UH181 |
UH20 |
UH35 |
UH501 |
ZX110 |
ZX120 |
EX300 |
EX355 |
EX400 |
EX450/EX455 |
EX550 |
EX600 |
EX700 |
EX800 |
EX1100 |
EX1200 |
UE30/35 |
UE40/45 |
UE50 |
UH035 |
UH03M |
UH04-1/2/3 |
UH041/042/043 |
UH045-5/7 |
UH04M |
UH051/052M/053 |
UH06-5 |
UH061/062/063 |
UH07-3/5/7 |
UH081/082/083 |
UH09-7 |
ZX370 |
ZX370GI |
ZX400 |
ZX450 |
ZX460 |
ZX470 |
ZX500 |
ZX600 |
ZX650 |
ZX670 |
ZX800 |
ZX130 |
ZX135 |
ZX160 |
ZX180 |
ZX200 |
ZX210 |
ZX225 |
ZX240 |
ZX250 |
ZX270 |
ZX330 |
ZX350 |
ZX850 |
ZX870 |
KH 100 |
KH 125 |
KH 150 |
KH 180 |
KH 230 |
KOBELCO |
ED150 |
ED150 1E |
ED150 2 |
ED180 |
ED190-8 |
ED190LC |
ED190LC-6E |
K903 MARKII |
K903A |
K903B |
K903C |
K904 MARK II |
K904BL |
K904C |
K904CL |
K904D |
K904DLC |
K904E |
K905A |
K905ALC |
K905LC |
K905LC MARK II |
K907 MARK II |
K907A |
K907CLC |
K907D |
K907DLC |
K907LC |
K909 MARK II |
K909A |
K909ALC |
K909LC MARK II |
K910 |
K912 |
K912LC MARK II |
K914 |
K916 |
K916LC |
K935 |
K935A |
SK135SRLC |
SK150LCMARK III |
SK60LC MARK III |
SK170LC |
SK200 MARK III |
SK200LC VI |
SK210 MARK IV |
SK210-8 |
SK210-9 |
SK210LC |
SK210LCMARK III |
SK210LCMARKIV |
SK210LC-6E |
SK210LC-8 |
SK220HDMARKIV |
SK220LCMARKIII |
SK235SR |
SK250MARK8 |
SK250HDMARKVI |
SK250HDLCMARKVI |
SK250HDNLCMARK |
SK250LC6E |
SK250NLCMARKVI |
SK260MARK8 |
SK270 |
SK270LC |
SK300MARKIII |
SK300LCMARKII |
SK300LCMARKIII |
SK330 |
SK330 8 |
SK330 MARK VI |
SK330LC MARK IV |
SK350LC 8 |
SK350LC 9 |
SK400LC |
SK450 |
SK450LC |
SK480LC |
SK60 MARK III |
SK600 |
SK75UR-1 |
SK75UR-2 |
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Discover Our Additional Product Range:
Journey through our exceptional and comprehensive collection of premium undercarriage parts. Our product line includes meticulously crafted track rollers, top rollers, sprockets, idlers, track links, and track shoes. Each element is designed for perfect integration with your machinery, boosting equipment performance and offering unparalleled quality and craftsmanship to meet every operational challenge with excellence.




Insightful Company Profile:
QUANZHOU ZHONGKAI MACHINERY, globally known as ZKMPARTS/ZKUCPARTS, has been a transformative leader in the industry since 2013. With headquarters in the vibrant city of Quanzhou, China, we excel in creating superior undercarriage components. Our extensive portfolio includes track rollers, track chains, idlers, top rollers, and sprockets/segment rims, catering to a wide array of machinery such as excavators, bulldozers, agricultural tractors, skid steers, and crawler loaders. We proudly support all leading global brands, including industry titans like Caterpillar, Komatsu, Kobelco, Hitachi, Fiat-Hitachi, Sany, Daewoo, Shantui, Doosan, XCMG, Liebherr, JCB, Volvo, John Deere, Hyundai, Bobcat, Yanmar, Kubota, Case, and many more.










Frequently Asked Questions:
1. Are you a factory or a trading entity?
We operate as a fully integrated factory and trading business, strategically located in Quanzhou City, Fujian Province.
2. What are the payment terms and delivery conditions?Our payment terms are structured as follows: 30% T/T payment in advance, with the remaining balance payable via T/T before delivery.
Delivery Terms: Typically,
for LCL container shipments (less than a full container load),we provide services under CIF or EXW terms;when dealing with LCL container shipments,we offer options forFOB or CIF shipping.We aim to make the delivery process flexible and accommodating.
Our delivery term options are negotiable to suit your needs.
3. What isthe expecteddelivery time frame?
Pricing Model: FOB Shipping Port: Xiamen or other ports, with a swift 25-30 days delivery timeframe post-receipt of your advance payment. The actual delivery time will be determined by the specific items and quantity in your order.
In case the items are in stock,the expedited delivery timeframe can be exceptionally quick, ranging from just 0-7 days.
4. How can I ensure the part fits my excavator? What is your quality assurance process?
(1) To guarantee compatibility, please provide the correct model number, machine serial number, or any identifiable numbers on the
parts themselves. Alternatively, you can measure the parts and provide dimensions or a detailed drawing.
(2) We employ top-tier testing procedures, meticulously inspecting each piece to secure impeccable quality, and enforce rigorous controls
to ensure that every product is safely and securely packed into the container.
5. What can you tell me about the product quality?
We offer three tiers of quality for your consideration:
(1) Economic Quality: With a 6-month guarantee, this option is tailored for construction applications, suitable for 20 tons and smaller machines, including models like PC 100 and PC 200.
(2) Standard Quality: Featuring a 12-month guarantee, this level is ideal for construction zones, covering mini excavators, 20 tons, and smaller machines, such as ViO 30, PC 100, PC 200.
(3) Heavy-Duty Quality: Boasting a 12-month guarantee, this robust option is perfect for demanding applications like mining, quarrying, and forestry, suitable for machines over 30 tons, including models like ZAX 330, PC 650, PC 1250, D10T.