Overview
  • RRH Series, Double-Acting Hollow Hydraulic Cylinders
  • RRH Series, Double-Acting Hollow Hydraulic Cylinders
  • RRH Series, Double-Acting Hollow Hydraulic Cylinders
  • RRH Series, Double-Acting Hollow Hydraulic Cylinders
  • RRH Series, Double-Acting Hollow Hydraulic Cylinders
  • RRH Series, Double-Acting Hollow Hydraulic Cylinders
  • RRH Series, Double-Acting Hollow Hydraulic Cylinders
  • RRH Series, Double-Acting Hollow Hydraulic Cylinders

RRH3010, 30 Ton Capacity,258mm Stroke, Double-Acting Hollow Hydraulic Cylinders

The RRH series from RIVERLAKE is a high-performance range of double-acting hollow hydraulic cylinders designed for demanding tensioning, pushing, and pulling applications. Combining robust construction with advanced surface treatments and intelligent safety features, these cylinders deliver exceptional reliability, operational speed, and long service life in harsh industrial environments.

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Series: RRH | Product Line: Industrial Tools

  • Advanced Surface Treatment – The cylinder body, piston, and stop ring undergo a gas nitriding + post-oxidation process, providing excellent wear resistance, self-lubrication, and superior corrosion protection.

  • Topcoat Painting – A final paint coating enhances visual identification and further improves overall corrosion resistance.

  • Overload Protection – An integrated relief valve protects the cylinder from damage in the event of overload.

  • External Ring Thread – Facilitates easy installation (except for models RRH1001，RRH1508,RRH2308,RRH4008 and RRH6008).

  • Double-Acting Operation – Enables rapid retraction, significantly improving work cycle efficiency.

  • Standard Quick Coupling & Dust Cap – All models come standard with CEJN quick couplers and protective dust caps for fast, clean, and secure connections.

  • Industrial-Grade Wiper Seal – Minimizes contamination ingress, effectively extending hydraulic cylinder life.

  • Certified Lifting Ring – All tonnage capacities feature a certified G80 high-strength lifting ring for safe and convenient handling.

  • Premium Polyurethane Seals – Deliver superior sealing performance, high wear resistance, and extended service life.

  • The removable rigid saddle prevents damage to the plunger when it comes into contact with rough surfaces.
  • The return pressure protection safety valve effectively prevents overpressure caused by pipeline errors.
  • The piston rod adopts gas nitriding treatment,featuring excellent wear resistance and corrosion resistance.
  • The Swedish CEJN coupler and dust cap ensure safety throughout.
  • Dust seal, preventing external impurities from entering the interior of the cylinder and causing contamination or damage.
  • The gas-nitrided stop ring is used to absorb eccentric load and prevent plunger over-travel.
  • The cylinder body is treated by gas nitriding plus post-oxidation process,followsed by external baked painting to deliver superior corrosion resistance
  • Dust seal, preventing external impurities from entering the interior of the cylinder and causing contamination or damage.
  • High-pressure seal to achieve zero internal leakage in the hydraulic system, reducing wear and extending service life.
Maximum Operating Pressure (bar)700
Capacity Class (tonnage)30
Stroke (mm)258
Collapsed Height/mm431
Extended Height/mm689
Return TypeDouble-Acting,Hydraulic Retraction
Advance Cylinder Effective(cm2)46.6
Retract Cylinder Effective(cm2)30.4
Advance Oil Capacity(cm3)1202
Retraction Oil Capacity(cm3)784
Surface TreatmentAll components undergo gas nitriding and post-oxidation process,cylinder body come with an extra baked paint coating layer.
CouplerCEJN 3/8NPT-18
Weight (kg)27
Collapsed Height/mm(A)431
Extended Height/mm(B)689
Cylinder Outside Dia/mm(C)114
Cylinder Inner Dia/mm(D)88.9
Plunger Dia/mm(E)63.5
Top To Retraction Port/mm(G)60
Saddle Dia/mm(H)63
Saddle Protri. From Plgr./mm(J)9
Thread P1 13/16″-16
Center Hole Dia/mm(R)33.3
Model NumberCapacity/TonStroke/mmMax Pushing Force(KN)Max Pulling Force(KN)Advance Cylinder Effective Area/cm2Retract Cylinder Effective Area/cm2Advance Oil Capacity/cm3Retract Oil Capacity/cm3Collapsed Height/mm(A)Extended Height/mm(B)Cylinder Outside Dia/mm(C)Cylinder Inner Dia/mm(D)Plunger Dia/mm(E)Top To Retraction Port/mm(G)Saddle Dia/mm(H)Saddle Protri. From Plgr./mm(J)Plunger Internal Thread (P)Plunger Thread Length/mm(N)Collar Thread(M)Collar Thread Length/mm(Q)Center Hole Dia/mm(R)Base Mounting Hole Bolt Circle/mm(U)Base Mounting Hole Thread(V)Base Mounting Hole Thread Depth/mm(Y)Weight/Kg
RRH3073017832621346.630.482954133050811488.963.5606391 13/16”-16354 1/2”-124233.392.23/8”-16UNC1421
RRH301025832621346.630.4120278443168911488.963.5606391 13/16”-16354 1/2”-124233.392.23/8”-16UNC1427
RRH603608957638082.354.2733482247336159123.991.96691122 3/4”-16356 1/4”-124853.8130.31/2”-13UNC1428
RRH60616657638082.354.21366900323489159123.991.96691122 3/4”-16356 1/4”-124853.8130.31/2”-13UNC1435
RRH601025757638082.354.221151393428695159123.991.96691122 3/4”-16356 1/4”-124853.8130.31/2”-13UNC1445
RRH1001953893161213387.4505333165203213165.112744126124”-1640**79.2177.85/8”-11UNC1933
RRH10037693161213387.41011666254330213165.112785126124”-16408 3/8”-126079.2177.85/8”-11UNC1961
RRH100615393161213387.420351337342495213165.112785126124”-16408 3/8”-126079.2177.85/8”-11UNC1979
RRH1001025793161213387.434202246460717212165.112785126124”-16408 3/8”-126079.2177.85/8”-11UNC19106
RRH15081452031429718204.1102.641442083349552247190.5152.46012744 1/4”-1240**79.2213.45/8”-11UNC22111
RRH23082202002164967309.3138.2618527644316313102402209119518M150X250**105260(4x)M16X225190
RRH400841020040361678576.7239.711534479548668640030525011124518M160X270**110340(4x)M24X336383
RRH600860020059371896848.227116964541952572548037032011531523M190X290**135415(4x)M24X336611