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NG ATTACHMENTS | EXCAVATOR HYDRAULIC CYLINDERS AND SPARE PARTS
Hydraulic Cylinders for Excavators – Reliable Power for Arm, Boom and Bucket Control
NG Attachments supplies and manufactures hydraulic cylinders for excavators,
including excavator boom cylinders, excavator arm cylinders,
dipper cylinders, bucket cylinders, hydraulic cylinder rods,
cylinder barrels, pistons, seal kits,
pins and bushings and complete excavator hydraulic cylinder assemblies
for OEM replacement, aftermarket repair, fleet maintenance and heavy-duty rebuild operations.
- Hydraulic Cylinder Excavator
- Boom Cylinder
- Arm Cylinder
- Bucket Cylinder
- Dipper Cylinder
- Seal Kit
- Chrome Rod
- OEM Replacement
Boom, arm and bucket cylinder solutions for OEM and aftermarket needs
Send your machine brand, model, serial number, cylinder photos, rod diameter, barrel diameter, stroke length,
pin-to-pin closed length and mounting dimensions. NG Attachments can prepare a technical quotation for complete
hydraulic cylinder assemblies, cylinder rebuild parts and custom manufacturing.
Precision manufacturing
CNC-machined cylinder components, hardened chrome rods, precision barrels and controlled welding processes.High-pressure resistance
Designed for demanding excavation, demolition, quarry, mining and heavy-duty attachment applications.Seal and rebuild support
Replacement rods, pistons, barrels, seals, bushings and complete cylinder repair parts can be quoted.OEM-fit compatibility
Hydraulic cylinders for Caterpillar, Komatsu, Volvo, Hitachi, Develon, Hyundai, JCB, Liebherr and more.Quick navigation for excavator hydraulic cylinder buyers
Hydraulic cylinder excavator solutions for boom, arm and bucket control
A hydraulic cylinder excavator system is one of the most critical power components of the machine.
Excavator hydraulic cylinders convert hydraulic pressure into controlled linear force for boom lifting,
arm movement, bucket curling, attachment positioning and heavy-duty digging. Buyers commonly search for
hydraulic cylinders for excavators, excavator hydraulic cylinder,
excavator cylinder, excavator cylinder assembly,
excavator boom cylinder, excavator arm cylinder,
excavator dipper cylinder, excavator bucket cylinder,
bucket hydraulic cylinder, boom lift cylinder,
arm hydraulic cylinder, dipper arm cylinder,
excavator hydraulic ram and excavator cylinder rebuild parts.
Controlled machine movement
Hydraulic cylinders control the lifting, digging, curling, dumping and positioning functions of excavators.
A damaged or leaking cylinder can reduce force, slow down work cycles and increase operating risk.
- Boom lifting force
- Arm and dipper movement
- Bucket curl and dumping control
Repair and replacement
NG Attachments can support replacement cylinder inquiries, rod repair, barrel replacement, seal kit supply,
piston replacement and complete hydraulic cylinder rebuild operations.
- Leaking cylinder repair
- Chrome rod replacement
- Seal and bushing replacement
Custom cylinder manufacturing
Special hydraulic cylinders can be manufactured for long reach booms, high reach demolition arms,
excavator attachments, material handling booms and non-standard machine conversions.
- Custom stroke length
- Special mounting design
- Heavy-duty pressure-tested assembly
Cylinder types available: boom, arm, dipper and bucket cylinders
Excavators use several hydraulic cylinder types depending on machine configuration. Each cylinder has different loads,
stroke length, mounting points, pressure requirements and wear conditions. NG Attachments can quote complete cylinder assemblies
or replacement components according to OEM dimensions and application details.
Boom cylinder
The boom cylinder provides lifting force for the main boom. It is heavily loaded during digging, lifting,
demolition, loading and attachment operation.
- Excavator boom cylinder
- Boom lift cylinder
- Main boom hydraulic cylinder
Arm cylinder / dipper cylinder
The arm cylinder, also called the dipper cylinder, controls the movement of the excavator arm and transfers digging force
to the bucket and attachment.
- Excavator arm cylinder
- Dipper cylinder
- Stick cylinder
Bucket cylinder
The bucket cylinder controls bucket curling and dumping. It works with the bucket linkage, H-link, dogbone link,
pins and bushings.
- Excavator bucket cylinder
- Bucket hydraulic cylinder
- Bucket curl cylinder
Attachment cylinder
Special cylinders can be used on thumbs, grapples, shears, crushers, tilting buckets, quick couplers and custom work tools.
- Thumb cylinder
- Grapple cylinder
- Crusher and shear cylinder
Long reach and demolition cylinder
Long reach and high reach machines may require special cylinders with different stroke, rod diameter, safety factor
and mounting geometry.
- Long reach boom cylinder
- High reach demolition cylinder
- Special arm cylinder
Custom cylinder assembly
Complete custom cylinder assemblies can be designed according to machine conversion, attachment requirements
or unavailable OEM part replacement.
- Custom bore and stroke
- Special mounting ends
- Pressure-tested design
Excavator hydraulic cylinders by machine brand and model
NG Attachments can support hydraulic cylinder inquiries for many popular excavator brands. This page is optimized for
brand-model searches such as Caterpillar excavator hydraulic cylinder,
CAT boom cylinder, CAT bucket cylinder, Komatsu excavator cylinder,
Komatsu PC200 boom cylinder, Volvo excavator arm cylinder,
Hitachi bucket cylinder, Doosan Develon hydraulic cylinder,
Hyundai excavator cylinder, JCB boom cylinder, Liebherr arm cylinder,
Kobelco bucket cylinder, Case excavator hydraulic cylinder,
John Deere excavator cylinder, SANY excavator boom cylinder and
XCMG excavator hydraulic cylinder.
Caterpillar hydraulic cylinders
CAT excavator boom cylinder, Caterpillar arm cylinder, CAT bucket cylinder, CAT hydraulic cylinder rod
and seal kits for CAT 307, 308, 312, 315, 320, 323, 325, 329, 330, 336, 340, 345, 349, 352, 365 and 374.Komatsu hydraulic cylinders
Komatsu boom cylinder, Komatsu PC200 arm cylinder, Komatsu bucket cylinder, PC210 dipper cylinder,
PC300 hydraulic cylinder and PC400 boom cylinder for PC138, PC160, PC200, PC210, PC220, PC240, PC290,
PC300, PC350, PC360, PC400, PC450, PC490, PC600 and PC800.Volvo hydraulic cylinders
Volvo excavator boom cylinder, Volvo EC220 arm cylinder, Volvo EC300 bucket cylinder, Volvo cylinder rod
and seal kits for EC140, EC160, EC180, EC210, EC220, EC240, EC250, EC300, EC350, EC380, EC480, EC550, EC700 and EC750.Hitachi hydraulic cylinders
Hitachi ZX boom cylinder, Hitachi bucket cylinder, Hitachi arm cylinder and hydraulic cylinder parts for
ZX130, ZX160, ZX180, ZX200, ZX210, ZX225, ZX240, ZX250, ZX270, ZX300, ZX350, ZX400, ZX470, ZX490 and ZX870.Doosan Develon hydraulic cylinders
Doosan boom cylinder, Develon arm cylinder, Doosan DX bucket cylinder, Develon cylinder seal kit and cylinder rod
for DX140, DX160, DX180, DX225, DX235, DX255, DX300, DX340, DX350, DX380, DX420, DX480, DX520 and DX800.Hyundai hydraulic cylinders
Hyundai boom cylinder, Hyundai R220 bucket cylinder, Hyundai arm cylinder, Hyundai HX cylinder parts and seal kits
for R140, R160, R180, R210, R220, R250, R290, R300, R330, R360, R380, R450, R480 and HX series excavators.JCB hydraulic cylinders
JCB excavator boom cylinder, JCB bucket cylinder, JCB dipper cylinder and JCB hydraulic cylinder parts
for JS130, JS145, JS160, JS180, JS200, JS220, JS240, JS260, JS300, JS330 and selected backhoe loader cylinders.Liebherr hydraulic cylinders
Liebherr boom cylinder, Liebherr arm cylinder, Liebherr bucket cylinder, Liebherr hydraulic ram and cylinder parts
for R914, R916, R920, R922, R924, R926, R930, R934, R936, R938, R944, R946, R950, R954, R960 and R980.Kobelco hydraulic cylinders
Kobelco boom cylinder, Kobelco bucket cylinder, Kobelco arm cylinder and cylinder rebuild parts
for SK140, SK160, SK180, SK200, SK210, SK230, SK250, SK260, SK300, SK330, SK350, SK380, SK480 and SK500.Case and New Holland cylinders
Case excavator hydraulic cylinder, Case boom cylinder, Case bucket cylinder, New Holland arm cylinder and seal kits
for CX130, CX145, CX160, CX180, CX210, CX240, CX250, CX290, CX300, CX350, CX470 and E-series excavators.John Deere hydraulic cylinders
John Deere excavator boom cylinder, Deere arm cylinder, John Deere bucket cylinder and cylinder parts
for 135G, 160G, 180G, 200G, 210G, 245G, 250G, 290G, 300G, 350G, 470G and selected construction machines.SANY, XCMG and LiuGong cylinders
SANY boom cylinder, XCMG excavator cylinder, LiuGong bucket cylinder, SDLG cylinder, Zoomlion cylinder
and custom replacement cylinders for SY215, SY235, SY305, SY365, XE215, XE260, XE370, CLG922, CLG936 and similar machines.Important: Model names alone are not enough for final compatibility. Cylinder dimensions may change according to serial number,
boom-arm configuration, regional machine version, long reach conversion, previous repair or aftermarket attachment use.
Caterpillar and Komatsu excavator cylinders for high-intent model searches
Many buyers search directly by brand and model. This section supports SEO phrases such as
CAT 320 boom cylinder, CAT 320 bucket cylinder, CAT 330 arm cylinder,
CAT 336 hydraulic cylinder, CAT 349 boom cylinder,
Komatsu PC200 boom cylinder, Komatsu PC210 bucket cylinder,
Komatsu PC300 arm cylinder, Komatsu PC400 boom cylinder and
Komatsu PC490 hydraulic cylinder.
Caterpillar hydraulic cylinder examples
CAT 312 boom cylinder, CAT 315 arm cylinder, CAT 320 bucket cylinder, CAT 323 hydraulic cylinder,
CAT 325 boom cylinder, CAT 329 arm cylinder, CAT 330 bucket cylinder, CAT 336 boom cylinder,
CAT 340 dipper cylinder, CAT 345 hydraulic cylinder, CAT 349 boom cylinder, CAT 352 bucket cylinder
and CAT 374 heavy-duty cylinder assembly.
- Caterpillar boom, arm and bucket cylinders
- CAT cylinder rods, barrels and seal kits
- CAT aftermarket cylinder replacement
Komatsu hydraulic cylinder examples
Komatsu PC138 cylinder, PC160 boom cylinder, PC200 bucket cylinder, PC210 arm cylinder,
PC220 dipper cylinder, PC240 hydraulic cylinder, PC290 bucket cylinder, PC300 arm cylinder,
PC350 cylinder assembly, PC360 boom cylinder, PC400 bucket cylinder, PC450 arm cylinder,
PC490 hydraulic cylinder and PC800 large excavator cylinder.
- Komatsu boom, arm and bucket cylinders
- Komatsu cylinder rod and piston parts
- Komatsu seal kit and rebuild support
Volvo, Hitachi, Develon, Hyundai and other excavator cylinder searches
This section supports high-intent model queries such as Volvo EC220 boom cylinder,
Volvo EC480 bucket cylinder, Hitachi ZX350 arm cylinder,
Hitachi ZX470 boom cylinder, Doosan DX225 bucket cylinder,
Develon DX300 hydraulic cylinder, Hyundai R220 bucket cylinder,
Hyundai HX300 boom cylinder, JCB JS220 dipper cylinder,
Liebherr R936 arm cylinder, Kobelco SK210 bucket cylinder,
Case CX210 boom cylinder, John Deere 350G bucket cylinder and
SANY SY365 hydraulic cylinder.
Volvo and Hitachi cylinders
Volvo EC210, EC220, EC240, EC300, EC350, EC380, EC480, EC700 and Hitachi ZX200, ZX210, ZX250, ZX300,
ZX350, ZX400, ZX470, ZX490 boom, arm and bucket cylinders can be quoted according to dimensions and photos.Doosan Develon and Hyundai cylinders
Doosan DX225, DX255, DX300, DX340, DX380, DX420, DX480 and Hyundai R210, R220, R250, R290, R330,
R360, HX220, HX300, HX380 hydraulic cylinders, rods, barrels and seal kits.JCB, Liebherr, Kobelco and Case cylinders
JCB JS series, Liebherr R series, Kobelco SK series, Case CX series, New Holland and John Deere excavator
cylinder parts for repair, replacement and custom manufacturing.Hydraulic cylinder parts: rods, barrels, pistons, glands and seal kits
In many repair operations, customers do not need only a complete cylinder. They may need individual components such as
excavator hydraulic cylinder rod, chrome rod, cylinder barrel,
hydraulic cylinder tube, piston, piston nut,
gland, rod eye, clevis mount, cylinder seal kit,
wiper seal, rod seal, piston seal, wear ring,
O-ring, backup ring, cylinder pin and bushing.
Hardened chrome rods
Rod quality is critical for sealing performance, corrosion resistance, bending strength and long service life.
- Chrome plated rods
- Induction hardened rods
- Custom rod replacement
Cylinder barrels and tubes
Barrels must be manufactured with correct bore, surface finish, wall thickness and welding quality for pressure resistance.
- Honed cylinder tubes
- Barrel replacement
- Heavy-duty tube design
Pistons and seal kits
Seal system quality directly affects internal leakage, holding force, cylinder speed, oil temperature and maintenance interval.
- Piston seals
- Rod seals and wipers
- Complete rebuild kits
Required measurements for accurate cylinder replacement
Accurate cylinder identification is essential before quotation or manufacturing. Small dimensional errors can cause mounting problems,
limited stroke, incorrect working angle, seal failure, pressure loss or unsafe machine operation.
Machine information
Provide machine brand, model, serial number, operating weight, boom type, arm length and cylinder position.
- Boom cylinder
- Arm / dipper cylinder
- Bucket cylinder
Dimensional information
Provide pin-to-pin closed length, open length if possible, stroke length, rod diameter, barrel outside diameter,
bore size if known, pin diameter and mounting width.
- Rod diameter
- Stroke length
- Pin and eye dimensions
Hydraulic and pressure details
Working pressure, port type, hose connection, oil flow, pressure spikes and application severity should be checked.
- Port size and thread
- Working pressure
- Demolition or quarry duty
Photos and condition
Send clear photos of the complete cylinder, rod damage, port area, mounting eyes, cylinder label and machine installation.
- Full cylinder photos
- Rod and barrel close-ups
- Mounting eye details
Comparison table for excavator hydraulic cylinder inquiries
This table is prepared with forced horizontal scrolling so it does not collapse inside WordPress Classic Editor or on mobile screens.
| Cylinder type | Also searched as | Main function | Compatible brands | Required measurements | Typical issue solved | Quote action |
|---|
| Boom cylinder | excavator boom cylinder, boom lift cylinder, main boom hydraulic cylinder | Lifts and lowers the excavator boom | CAT, Komatsu, Volvo, Hitachi, Develon, Hyundai, JCB, Liebherr | Closed length, stroke, rod diameter, bore, pin diameter, mounting width | Weak boom lift, leaking seals, bent rod, damaged barrel | Request quote |
| Arm cylinder | excavator arm cylinder, dipper cylinder, stick cylinder, arm hydraulic cylinder | Controls arm / dipper movement | Caterpillar, Komatsu, Volvo, Hitachi, Doosan, Hyundai, Kobelco, Case | Rod diameter, stroke length, pin-to-pin length, port type, mounting eyes | Slow arm movement, internal leakage, rod scoring, seal failure | Request quote |
| Bucket cylinder | excavator bucket cylinder, bucket hydraulic cylinder, bucket curl cylinder | Controls bucket curl and dumping angle | CAT, Komatsu, Volvo, Hitachi, JCB, Liebherr, Kobelco, SANY, XCMG | Closed length, stroke, rod diameter, eye width, pin diameter, linkage compatibility | Poor bucket curl, leaking cylinder, damaged rod, low holding force | Request quote |
| Cylinder rod | chrome rod, hydraulic cylinder rod, excavator cylinder rod, replacement rod | Transfers cylinder force and supports sealing surface | All major excavator brands | Rod diameter, rod length, thread, eye type, chrome surface condition | Bent rod, scratched chrome, oil leakage, seal damage | Request quote |
| Seal kit and rebuild parts | excavator cylinder seal kit, piston seal, rod seal, wiper seal, rebuild kit | Restores sealing performance and pressure holding | All major excavator and backhoe models | Cylinder type, bore, rod diameter, seal dimensions, cylinder photos | Oil leakage, internal bypass, pressure loss, slow movement | Request quote |
| Custom hydraulic cylinder | custom excavator cylinder, special hydraulic cylinder, attachment cylinder | Special applications, attachments and machine conversions | Long reach, high reach, demolition, mining and special excavators | Bore, rod, stroke, pressure, mounting type, drawings, application details | Unavailable OEM part, special boom, attachment conversion | Request quote |
Scroll the table horizontally to view all columns.
Global supply for excavator hydraulic cylinders and spare parts
NG Attachments supports international buyers looking for excavator boom cylinders, arm cylinders, bucket cylinders,
cylinder rods, seal kits, rebuild parts and custom hydraulic cylinder assemblies for construction, quarry, mining,
demolition, fleet maintenance, rental operations, repair workshops and equipment dealers.
United States
CAT hydraulic cylinders, Komatsu cylinder parts, Volvo boom cylinders, Hitachi bucket cylinders and aftermarket cylinder
rebuild support for contractors, dealers and fleet owners.United Kingdom
Excavator hydraulic cylinders, seal kits, rods, barrels and custom cylinder assemblies for civil works,
demolition companies and equipment repair workshops.Canada
Heavy-duty hydraulic cylinders for mining, forestry, quarrying, road construction, earthmoving and cold climate operations.Australia and New Zealand
Boom cylinders, arm cylinders, bucket cylinders and rebuild parts for quarry, mining, construction and heavy equipment fleets.Europe
Replacement hydraulic cylinders for Caterpillar, Komatsu, Volvo, Hitachi, Liebherr, JCB, Hyundai, Develon, Kobelco and Case excavators.Middle East and Gulf countries
Excavator cylinders for construction, oil and gas infrastructure, quarry, demolition, port, road and industrial projects.Africa
Hydraulic cylinder assemblies, rods, barrels and seal kits for mining, quarrying, construction and infrastructure equipment.Latin America
Excavator hydraulic cylinder replacement and rebuild parts for mining, aggregates, road construction, forestry and earthmoving machines.International dealers
Export packaging, technical identification, dimensional control and consolidated supply for hydraulic spare parts distributors.Machine compatibility: Caterpillar, Komatsu, Volvo, Hitachi, Doosan, Develon, Hyundai, JCB,
Liebherr, Kobelco, Case, New Holland, John Deere, SANY, XCMG, LiuGong, Sumitomo, Link-Belt and other excavator brands.
Frequently asked questions about hydraulic cylinders for excavators
What are the main hydraulic cylinders on an excavator?
The main hydraulic cylinders on an excavator are boom cylinders, arm or dipper cylinders and bucket cylinders.
Some machines may also use cylinders for thumbs, grapples, quick couplers, tilting buckets and special attachments.Can NG Attachments supply Caterpillar and Komatsu excavator cylinders?
Yes. NG Attachments can quote Caterpillar boom cylinders, CAT bucket cylinders, Komatsu boom cylinders,
Komatsu arm cylinders, Komatsu bucket cylinders and replacement cylinder parts according to machine model,
photos and dimensions.Can I order only a cylinder rod or seal kit?
Yes. Depending on the cylinder details, NG Attachments can quote replacement rods, barrels, pistons, seal kits,
bushings, pins and other rebuild components.What information is required for a hydraulic cylinder quote?
Machine brand and model, serial number, cylinder type, photos, rod diameter, barrel diameter, stroke length,
pin-to-pin closed length, pin diameter, mounting width, port type and destination country are recommended.Why does an excavator hydraulic cylinder leak?
Common causes include worn seals, scratched chrome rod, damaged barrel, contaminated hydraulic oil, bent rod,
excessive side load, worn bushings or incorrect installation.Can NG Attachments manufacture custom hydraulic cylinders?
Yes. NG Attachments can manufacture custom hydraulic cylinders for special attachments, long reach booms,
high reach demolition machines, unavailable OEM parts and non-standard applications.Brand and compatibility disclaimer
Caterpillar, CAT, Komatsu, Volvo, Hitachi, Doosan, Develon, Hyundai, JCB, Liebherr, Kobelco, Case, New Holland,
John Deere, SANY, XCMG, LiuGong, Sumitomo, Link-Belt and other brand names are trademarks of their respective owners.
These names are used only for compatibility reference, product identification and customer inquiry purposes.
NG Attachments is an independent manufacturer and supplier of attachment solutions, replacement parts and custom-fabricated components.
Important: Always confirm machine serial number, cylinder dimensions, photos, pressure requirements and actual working condition
before ordering hydraulic cylinder parts. Final compatibility must be verified from measurements and technical details.
Request hydraulic cylinder price and technical compatibility check
If your company needs hydraulic cylinders for excavators, boom cylinders,
arm cylinders, dipper cylinders, bucket cylinders,
hydraulic cylinder rods, barrels, pistons,
seal kits, Caterpillar hydraulic cylinders, Komatsu hydraulic cylinders,
Volvo cylinders, Hitachi cylinders or custom aftermarket cylinder assemblies,
NG Attachments can prepare a technical and commercial quotation.
For an accurate quotation, please send: machine brand and model, serial number, cylinder position, photos,
rod diameter, barrel diameter, stroke length, closed pin-to-pin length, pin diameter, mounting width,
port type, required quantity and destination country.
