Premium Quality Hydraulic Cylinders - Quality Assured
1. Internals:Cylinder barrel adopts GUOYUE EU/US metallurgical standard CD250 structure. Barrel material: 45#, 42CrMo, or 27SiMn. Bore honed to H8 precision with surface roughness Ra<0.4μm. Heads, base, trunnions, and pistons are exclusively made of 45# steel; no cast iron or cast steel components are used.
2. Buffering:Multiple buffering options including fixed and floating buffer structures to ensure effective deceleration across various pressures and speed ranges.
3. Welding:100% ultrasonic impact treatment applied to all pressure-bearing and load-critical welds. This eliminates weld stress (removal rate ≥90%) and significantly enhances weld fatigue strength.
4. Sealing:All cylinders exclusively use premium imported seals from Japan NOK, Sweden Trelleborg, Germany Merkel, and GP. No domestic seals are utilized.
5. Testing &Certification:Factory testing strictly complies with GB/T15622-2005 "Hydraulic Fluid Power - Test Methods for Cylinders" and internal premium standard Q/GAKY014-2023. Includes provision of factory test reports and product qualification certificates.
6. Warranty: One-year warranty from shipment date. Free repair or replacement provided for defects arising from design or manufacturing within the warranty period.
Key Advantages:
Precision Fit: Direct OEM replacement with brand-specific mounts/ports(ISO 16028 compliant).
Heavy-Duty Rods: Hard-chromed 42CrMo rods resist side-load bending.
Seal Longevity: Triple-lip NBR/PU seals endure 500,000+ cycles.
Compact Power: High 250-bar pressure in tight spaces.
Corrosion Defense: Epoxy-coated tubes prevent pitting in wet environments.
Core Applications
1. Boom/Arm Cylinders: Trench digging, material handling.
2. Swing Drives: Precise 360° rotation control.
3. Bucket/Tilt Rams: Grading, loading, backfilling.
4. Blade Lift Cylinders: Slope leveling, stabilization.
5. Auxiliary Circuits: Hammer/grapple attachments.
6. Undercarriage Adjusters: Track tension maintenance.
| Daewoo specification / model | Hitachi ZKS / specification / model | Carter / specification / model | Komatsu / specification / model | Kobelco / specification / model |
| | Hitachi 60-3 fight | Carter 306 hook | Komatsu 56 hook | God steel 55 hook |
| Daewoo 55 arms | The Hitachi 60-3 middle arm | The Carter 306 middle arm | Komatsu 56 midarm | God steel 55 midarm |
| Daewoo 55 midarm | ZKS 60 hook | The Carter 306 Big Arm | Komatsu 60-7 / 8 hook fight | God steel 55 arms |
| Daewoo 55 hook | The ZKS 60 middle arm | Carter 307A / B / C / D / E fights | Komatsu 60-7 / 8 middle arm | Kobelco 60-8 hook |
| Daewoo 60 hook | The ZKS 60 large arm | Carter 307A / B / C / D / E middle arm | Komatsu 60-7 / 8 large arm | Kelco 60-8 middle arm |
| Daewoo 60 midarm | ZKS 70 hook (KYB / Toyo | Carter 307A / B / C / D / E large arm | Komatsu 70-8 hook fight | Kobelco 60-8 large arm |
| Daewoo 60 arms | ZKS 70 middle arm (KYB / Toyo | Carter 311 hook | The Komatsu 70-8 middle arm | Kobelco 75-8 hook |
| Daewoo 80 hook | ZKS 70 Big Arm (KYB / Toyo | The Carter 311 middle arm | Komatsu 70-8 large arm | The Kobelco 75-8 middle arm |
| Daewoo 80 midarm | ZKS120 Buckle fighting | Carter 312A / B / C / D hook | Komatsu 78 hook | The Kobelco 75-8 large arm |
| Daewoo 80 arms | ZKS120 Middle arm | The Carter 312A / B / C / D middle arm | Komatsu 78 midarm | Kisco 100-3-5 hook |
| Daewoo 150 hook fight | ZKS120 Large arm | The Carter 312A / B / C / D large arm | Small pine 78 arms | KSCO 100-3-5 middle arm |
| The Daewoo 150 middle arm | Hitachi 120-2-3-5-6 fight | Carter 315 hook | Komatsu 120-3-5-6 fight | Kelco 100-3-5 large arm |
| Daewoo 150 large arm | The Hitachi 120-2-3-5-6 midarm | The Carter 315 middle arm | Komatsu 120-3-5-6 middle arm | Kobelco 120-5-6 hook |
| Daewoo 220-7 / -5 hook | Hitachi 120-2-3-5-6 large arm | Carter 315 DL hook | Komatsu 120-3-5-6 large arm | Kobe 120-5-6 middle arm |
| Daewoo 220-7 / -5 middle arm | ZKS200-1-3-3J hook | The Carter 315 DL mid-arm | Komatsu 130-7 hook fight | Kelco 120-5-6 large arm |
| Daewoo 220-7 / -5 large arm | The ZKS200-1-3-3J middle arm | Carter 320D hook | Komatsu 130-7 middle arm | Kobelco 130 / 135-8 hook |
| Daewoo 215-7 / -9 fight | The ZKS200-1-3-3J large arm | The Carter 320D middle arm | Komatsu 130-7 large arm | Kobe 130 / 135-8 middle arm |
| Daewoo 215-7 / -9 middle arm | Hitachi 200-12356 fight | Carter 325C hook | Komatsu 200-35678 fight | Kelco 130 / 135-8 large arm |
| Daewoo 215-7 / -9 large arm | Hitachi 200-12356 middle arm | The Carter 325C middle arm | Komatsu 200-35678 middle arm | Kobelco 140-8 hook |
| Daewoo 225-9E / -7 fight | Hitachi 200-12356 Big Arm | Carter 325D hook | Komatsu 200-35678 large arm | The Kobe Steel 140-8 middle arm |
| Daewoo 225-9E / -7 middle arm | ZKS240 Buckle fighting | The Carter 325D middle arm | Komatsu 220-5678 hook | Kelco 140-8 large arm |
| Daewoo 225-9E / -7 large arm | ZKS240 Middle arm | Carter 329D hook | Komatsu 220-5678 middle arm | Kisco 200-567 hook |
| Daewoo 215-9E fight | ZKS240 Large arm | The Carter 329D middle arm | Komatsu 220-5678 large arm | Kisco 200-568 middle arm |
| The Daewoo 215-9E middle arm | Hitachi 220-12356 fight | Carter 330C hook | Komatsu 240-8 hook fight | Kobelco 200-568 large arm |
| Daewoo 215-9E large arm | Hitachi 220-12356 middle arm | The Carter 330C middle arm | Komatsu 240-8 middle arm | Kobelco 210-8 hook |
| Daewoo 258 hook fight | Hitachi 220-12356 Big Arm | The Carter 330C large arm | Komatsu 240-8 large arm | Kobe 210-8 middle arm |
| The Daewoo 258 middle arm | Hitachi 230-12356 fight | Carter 336D hook | Komatsu 270-6-7 fight | Kobelco 210-8 large arm |
| Daewoo 258 large arm | Hitachi 230-12356 middle arm | The Carter 336D middle arm | Komatsu 270-6-7 middle arm | Kobels 230 / 250-6E hook |
| The DX260 hook fight | Hitachi 230-12356 Big Arm | The Carter 336D large arm | Komatsu 270-6-7 large arm | KSCO 230 / 250-6E middle arm |
| The DX260 middle arm | ZKS270 Buckle fighting | Carter 345D hook | Komatsu 300-567 hook | Kelco 230 / 250-6E arm |
| The DX260 large arm | ZKS270 Middle arm | The Carter 345D middle arm | Komatsu 300-567 middle arm | Kobelco 250 / 260 / 270 hook |
| Daewoo 300-5 / -7 fight | ZKS270 Large arm | Liugong / Specification / model | Komatsu 300-567 large arm | Kisco 250 / 260 / 270 middle arm |
| Daewoo 300-5 / -7 middle arm | ZKS330 Buckle fighting | Liugong 907 / 908 / 908C hook fight | Komatsu 350 hook | Kobelco 250 / 260 / 270 large arms |
| Daewoo 300-5 / -7 large arm | ZKS330 Middle arm | Liugong 907 / 908 / 908C middle arm | The Komatsu 350 middle arm | Kobelco 350 over 8 / -8 hook fight |
| The DX300 hook fight | ZKS330 Large arm | Liugong 907 / 908 / 908C large arm | Komatsu 350 large arm | Kobelco 350 over 8 / -8 middle arm |
| The DX300 middle arm | Hitachi 470 / 450 hook | Liugong 915CD / 150 hook | Komatsu 360-6-7 fight | Kobelco 350 over 8 / -8 big arm |
| The DX300 large arm | The Hitachi 470 / 450 middle arm | Liugong 915CD / 150 middle arm | Komatsu 360-6-7 middle arm | Kobelco 380 hook |
| Daewoo 370 / 350 / 360 hook | Hitachi 470 / 450 large arm | Liugong 915CD / 150 large arm | Komatsu 360-6-7 large arm | The Kobelco 380 middle arm |
| Daewoo 370 / 350 / 360 middle arm | ZKS470 / 450 hook | Liugong 922D / 920 / 922 / 925 hook fight | Komatsu 400-567 hook | Kobelco 380 large arm |
| Daewoo 370 / 350 / 360 large arm | The ZKS470's / 450 middle arm | Liugong 922D / 920 / 922 / 925 middle arm | Komatsu 400-567 middle arm | Kobels 450 / 460 / 480 hook |
| DX350 / 380 hook | ZKS470 A / 450 large arm | Liugong 922D / 920 / 922 / 925 large arm | Komatsu 450 / 460 hook | Kisco 450 / 460 / 480 middle arm |
| DX350 / 380 middle arm | | Liugong 925 hook | Komatsu 450 / 460 middle arm | |
| The DX350 / 380 large arm | | Liugong 925 middle arm | Komatsu 160 hook | |
| Daewoo 420 hook | | Liugong 925 big arm | The Komatsu 160 middle arm | |
| The Daewoo 420 middle arm | | Liugong 936 hook dou | | |
| Daewoo 420 Ararm | | Liugong 936 middle arm | | |
| Daewoo 500 hook | | Liugong 480 middle arm | | |
| The Daewoo 500 middle arm | | | | |
| Modern / specification / model number | Trinity / specification / model | Volvo / specification / model | Add ten / specification / model | Levo / specification / model |
| Modern 55-7 hook | Trinity 55 / 60 hook | Volvo 55 / 60 hook | Garten 820-3 / 5 / R / V hook | Ro 60 / 65 hook |
| Modern 55-7 middle arm | Trinity 55 / 60 middle arm | The Volvo 55 / 6 middle arm | Garten 820-3 / 5 / R / V middle arm | Levo 60 / 65 middle arm |
| Modern 55-7 large arm | Trinity 55 / 60 large arms | The Volvo 55 / 60 big arm | Garten 820-3 / 5 / R / V large arm | Revo 60 / 65 large arm |
| Modern 60-5-7 fights | Trinity 65 / 75 fight | The Volvo 80 middle arm | Garten 1023 hook | Revo 80 Guys |
| Modern 60-5-7 middle arm | Trinity 65 / 75 middle arm | Volvo 140 / 145 hook | Garten 1023 middle arm | Revo 80 midarm |
| Modern 60-5-7 large arm | Trinity 65 / 75 large arm | The Volvo 140 / 145 middle arm | Garten 1023 large arm | Revo 80 arms |
| Modern 80 hook | Sany 85 midarm | The Volvo 210B / 220B hook fight | Garten 1430 hook | Revo 85 Guys |
| Modern 80 midarm | Trinity 85 hook | The Volvo 210B / 220B middle arm | Garten 1430 middle arm | Revo 85 midarm |
| Modern 80 arms | Trinity 95 hook | The Volvo 210B / 220B Big Arm | Sumitomo / specification / model | Revo 85 arms |
| Modern 110-7 hook | Trinity 115 middle arm | Volvo 240 / 250 hook | Sumitomo 120A1 / A2 / A3 fights | Ro 150 hook fight |
| Modern 110-7 middle arm | Trinity 135 / 155 hook | The Volvo 240 / 250 mid-arm | Sumitomo 120A1 / A2 / A3 middle arm | The Levo 150 middle arm |
| Modern 110-7 big arm | Trinity 135 / 155 middle arm | The Volvo 240 / 250 Big Arm | Sumitomo 200A1 / A2 / A3 hook fights | Ro 150 large arm |
| Modern 130-5-7 fights | Trinity 135 / 155 large arm | Volvo 290 / 300 hook | Sumitomo 200A1 / A2 / A3 middle arm | Leo 220 / 210 hook |
| Modern 130-5-7 middle arm | Trinity 195 / 205 / 215 / 210 hook | The Volvo 290 / 300 mid-arm | Sumitomo 200A1 / A2 / A3 large arm | Levo 220 / 210 middle arm |
| Modern 130-5-7 large arm | Trinity 195 / 205 / 215 / 210 middle arm | The Volvo 290 / 300 Big Arm | Sumitomo 240 / Kith 240 fights | Leo 220 / 210 large arm |
| Modern 150-7-9 fights | Trinity 195 / 205 / 215 / 210 large arms | Volvo 360 / 380 hook | Sumitomo 240 / Keith 240 middle arm | Ro 260 hook |
| Modern 150-7-9 middle arm | Trinity 235 / 225 hook | The Volvo 360 / 380 mid-arm | Sumitomo 240 / Keith 240 Big arm | The Levo 260 middle arm |
| Modern 150-7-9 large arm | Trinity 235 / 225 middle arm | The Volvo 360 / 380 Big Arms | Sumitomo 350 hook fight | Lust / specification / model |
| Modern 200-3-5 hook | Trinity 235 / 225 large arm | Volvo 460 / 480 hook | Sumitomo 350 middle arm | Lust 80 hook |
| Modern 200-3-5 middle arm | Trinity 285 / 305 / 335 hook | The Volvo 460 / 480 mid-arm | Dragon worker / specification / model | Lust 80 middle arm |
| Modern 200-3-5 large arm | Trinity 285 / 305 / 335 middle arm | The Volvo 460 / 480 Big Arm | Dragon 60 hook bucket | Lust 80 big arm |
| Modern 210-5 hook | Trinity 285 / 305 / 335 large arm | | Longong 60 midarm | Lust 130 / 160 hook |
| Modern 210-5 middle arm | Trinity 305 / 330 / 365 hook | | Dragon 60 arms | Lust 130 / 160 middle arm |
| Modern 210-5 large arm | Trinity 305 / 330 / 365 middle arm | | Longong 75 midarm | Lust 130 / 160 large arm |
| Modern 215-7 hook | Trinity 305 / 330 / 365 large arm | | Dragon 90 hook | Lust 200 / 210 hook |
| Modern 215-7 middle arm | Trinity 385 hook fight | | Dragon 90 midarm | Lust 200 / 210 middle arm |
| Modern 215-7 large arm | Trinity 385 middle arm | | Dragon 90 arms | Lust 200 / 210 large arm |
| Modern 225-7-9 fights | Trinity 465 hook | | Dragon worker 150 hook | Lust 220 / 230 hook |
| Modern 225-7-9 middle arm | Trinity 465 middle arm | | Longgong 150 middle arm | Lust 220 / 230 middle arm |
| Modern 225-7-9 large arm | | | Dragon worker 200 hook | Lust 220 / 230 large arm |
| Modern 215-9 fight | | | Longgong 200 middle arm | Lust 350 / 360 hook |
| Modern 215-9 middle arm | | | Dragon worker 200 arms | Lust 350 / 360 middle arm |
| Modern 215-9 big arm | | | Dragon worker 280 hook | Lust 350 / 360 large arm |
| | | | Longgong 360 middle arm | Lust 450 hook |
| | | | | Lust 450 middle arm |
| Kubota / specification / model | Mountain weight / specification / model | Yuchai / specification / model | Shan River Smart / specification / model | Xugong / Specification / model |
| Kubota 135 fight | Friends 907 / JCM907 / GC88 fight | Jade wood 35 hook | Shanhe intelligent 50 hook fight | Xu Gong 60 hook |
| Kubota 135 middle arm | Zhongyou 907 / JCM907 / GC88 middle arm | Jade wood 35 midarm | Shanhe intelligent 50 middle arm | Xu Gong 60 midarm |
| Kubota 135 big arm | Friends 913 / GC138 / mountain weight 913 hook fight | Jade wood 35 arms | Shanhe Intelligent 50 big arm | Xu Gong 60 arms |
| Kubota 155 / 161 / 165 fight | Zhongyou 913 / GC138 / weight 913 middle arm | Yuchai 60-6 / 7 / 8 / Yuchai 65 hook fight | Shanhe intelligent 60 hook fight | Xugong 80 hook |
| Kubota 155 / 161 / 165 middle arm | Zhongyou 913 / GC138 / weight 913 large arm | Yuchai 60-6 / 7 / 8 / Yuchai 65 middle arm | Shanhe intelligent 60 middle arm | Xugong 80 midarm |
| Kubota 155 / 161 / 165 large arm | Friends 921 / JCM921 / 922 hook fight | Yuchai 60-6 / 7 / 8 / Yuchai 65 big arm | Shanhe Intelligent 60 big arm | Xugong 80 arms |
| Kubota 183 / 185 fight | Zhongyou 921 / JCM921 / 922 middle arm | Yuchai 85-5 / 6 / 8 hook fight | Shanhe intelligent 70 hook fight | Xugong 135 hook |
| Kubota 183 / 185 middle arm | Friends 921 / JCM921 / 922 large arm | Yuchai 85-5 / 6 / 8 middle arm | Shanhe intelligent 70 middle arm | Xu Gong 135 middle arm |
| Kubota 183 / 185 large arm | | Yuchai 85-5 / 6 / 8 large arm | Shanhe intelligent 70 big arm | Xugong 135 big arm |
| | | Yuchai 135 hook fight | Shanhe intelligent 80 hook fight | Xugong 150 hook |
| | | Yuchai 135 middle arm | Shanhe intelligent 80 middle arm | Xu Gong 150 middle arm |
| | | Yuchai 135 big arm | Shanhe intelligent 80 big arm | Xugong 150 big arm |
| | | Yuchai 200 / 210 hook fight | Shanhe intelligent 90 hook fight | Xugong 210 / 215 hook |
| | | Yuchai 200 / 210 middle arm | Shanhe intelligent 90 middle arm | Xugong 210 / 215 middle arm |
| | | Yuchai 200 / 210 big arm | Shanhe intelligent 90 big arm | Xugong 210 / 215 big arm |
| | | Yuchai 230 / 220 hook fight | Shanhe intelligent 150 hook fight | Xugong 230 / 240 / 250 / 260 / 265 hook |
| | | Yuchai 230 / 220 middle arms | Shanhe Intelligent 150 middle arm | Xugong 230 / 240 / 250 / 260 / 265 middle arm |
| | | Yuchai 230 / 220 big arms | Shanhe Intelligent 150 big arm | Xugong 230 / 240 / 250 / 260 / 265 large arm |
| | | | Shanhe intelligent 210 hook fight | Xugong 330 / 335 hook |
| | | | Shanhe Intelligent 210 middle arm | Xugong 330 / 335 middle arm |
| | | | Shanhe intelligent 230 hook fight | Xugong 330 / 335 big arm |
| | | | Shanhe Intelligent 230 middle arm | Xugong 370 hook |
| | | | Shanhe Intelligent 230 big arm | Xu Gong 370 middle arm |
| | | | Shanhe Smart 330 Arm | Xugong 370 big arm |














