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  • JGH

    One of Ariel's medium-sized, reciprocating separable compressors, the JGH is engineered to accommodate a wide range of compressor cylinders.

    Size Comparison
     

  • Product Features

  • Slider_Aux_End_HEKT_300_260

    Full-Pressure Lubrication

    A frame-driven lube oil pump provides cooled oil through a full-flow oil filter to all moving parts in the frame. A divider-block system supplies metered oil to cylinder bores and rod packings.

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    High-Strength Bolting

    Durable Grade 8 bolting on all loaded joints combined with specially designed fatigue-fighting bolts on all valve caps ensure ultimate strength.

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    Rigid Connecting Rods

    The JGH compressors feature durable connecting rods manufactured from ductile iron with a 4-bolt heavy-duty "I" section.

       
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      Rugged Crossheads

      One-piece, long-life crossheads with hardened, ground steel crosshead pins and direct, full-pressure lubrication at the top and bottom for minimum wear.

       

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      Innovative Cylinders

      Ariel's horizontal and double-acting cylinders eliminate the cost of a cylinder cooling system and remove the maintenance problems associated with water cooling.

       
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      Durable Pistons and Rods

      JGH compressors feature wear-resistant ductile or gray iron pistons and precision-ground alloy steel piston rods with locking crosshead nuts. Rolled threads are 1/4" under rod diameter for easy installation.

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      Precision Bearing Shells

      Every Ariel compressor features precision-machined compact tri-metal main and connecting rod bearings..

       
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      Versatile Unloading Devices

      Ariel offers manual, head-end variable volume clearance pockets on most cylinders. Pneumatic suction valve un-loaders are available on a limited basis.
       
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      Efficient Valving

      Plate-type valves are designed for modern speeds, utilizing non-metallic sealing elements as standard. Valves are selected to comply with established low-valve velocity standards.

       

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      Heavy-Duty Crankshafts

      JGH compressors feature forged steel, precision-machined crankshafts with integral counter-weights manufactured by Ariel Corporation.

       
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      High-Efficiency Spin-On Oil Filters

      Ariel JGH compressors feature high-efficiency spin-on oil filters rated at 5 micron nominal and 17 micron absolute.

       

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      Rugged Crankcase

      Ariel crankcases are designed for long service life and ease of access during maintenance. Our crankcases feature a heavily-ribbed, high-strength cast iron base with a removable lightweight aluminum top cover.

    • Full-Pressure Lubrication

      A frame-driven lube oil pump provides cooled oil through a full-flow oil filter to all moving parts in the frame. A divider-block system supplies metered oil to cylinder bores and rod packings.



       

      High-Strength Bolting

      Durable Grade 8 bolting on all loaded joints combined with specially designed fatigue-fighting bolts on all valve caps ensure ultimate strength.



      Rigid Connecting Rods

      This compressor features durable connecting rods manufactured from forged steel with a 4-bolt heavy-duty "I" section.



       

      Rugged Crossheads

      One-piece, long-life crossheads with hardened, ground steel crosshead pins and direct, full-pressure lubrication at the top and bottom for minimum wear.



       

      Innovative Cylinders

      Ariel's horizontal and double-acting cylinders eliminate the cost of a cylinder cooling system and remove the maintenance problems associated with water cooling.



      Durable Pistons and Rods

      This compressors features wear-resistant ductile or gray iron pistons and precision-ground alloy steel piston rods with locking crosshead nuts. Rolled threads are 1/4" under rod diameter for easy installation.



      Precision Bearing Shells

      Every Ariel compressor features precision-machined compact tri-metal main and connecting rod bearings.



       

      Versatile Unloading Devices

      Ariel offers manual, head-end variable volume clearance pockets on most cylinders. Pneumatic suction valve un-loaders are available on a limited basis.



      Efficient Valving

      Plate-type valves are designed for modern speeds, utilizing non-metallic sealing elements as standard. Valves are selected to comply with established low-valve velocity standards.



      Heavy-Duty Crankshafts

      Ariel manufactured crankshafts are precision-machined one-piece forged steel with integral counter-weights, balanced for smooth operation.



      High-Efficiency Spin-On Oil Filters

      This compressor features high-efficiency spin-on oil filters rated at 5 micron nominal and 17 micron absolute.



      Rugged Crankcase

      Ariel crankcases are designed for long service life and ease of access during maintenance and feature heavily-ribbed, high-strength cast iron base with removable lightweight aluminum top cover.




    • Specifications

    • Frame JGH/2 JGH/4
      Number of Throws 2 4
      Rated Power (BHP) 680 1,360
      Stroke (inch) 4.5
      Maximum RPM 1,200
      Piston Speed (FRM) 900
      Total Rod Load (lbs) 48,000
      Tension (lbs) 24,000
      Compression (lbs) 30,000
      Average Weight without Cylinders (lbs) 4,000 7,900
      Maximum Length (inch) 53
      Nominal Width (inch) 139
      Crankshaft Centerline, from bottom (inch) 17
      Frame JGH/2 JGH/4
      Number of Throws 2 4
      Rated Power (kW) 507 1,014
      Stroke (mm) 114
      Maximum RPM 1,200
      Piston Speed (m/s) 4.57
      Total Rod Load (N) 213,515
      Tension (N) 106,757
      Compression (N) 133,447
      Average Weight without Cylinders (kg) 1,814 3,583
      Maximum Length (mm) 1,346
      Nominal Width (mm) 3,531
      Crankshaft Centerline, from bottom (mm) 431.8
       
      JGH
      Number of Throws
      2 | 4
      Stroke
      4.50 in
      114 mm
      Rated RPM
      1,200
      Rated Power/Throw
      340 BHP
      254 kW

      Internal Gas Rod Loads

      Compression
      30,000 lbf
      133.4 kN
      Tension
      24,000 lbf
      106.8 kN
      Total
      48,000 lbf
      213.5 kN

      Miscellaneous

      Rod Diameter
      2.000 in
      51 mm
      Crankshaft Centerline
      13.750 in
      349 mm
      Main Diameter
      5.625 in
      143 mm
      Guide Design
      Separable

      Material

      Crankshaft
      Forged Steel
      Connecting Rod
      Ductile Iron
      Crosshead
      Gray Iron
      Crosshead Bushing
      N/A

    • Materials

    • Mid Frame Montage
      Crankcase

      Crankcase

      Mid Frame Crosshead
      Crosshead

      Crosshead

      Mid Frame ConRod
      Connecting Rod

      Connecting Rod

    • Part Material
      Crankcase Gray Iron
      Crosshead Gray Iron
      Crankshaft Forged Steel
      Connecting Rod Ductile Iron
      Main Bearing Tri-Metal
      Thrust Bearing Bronze
      Connecting Rod Bearing Tri-Metal
      Crosshead Guide Gray Iron
      Crosshead Pin Alloy Steel
      Crosshead Pin Bushing N/A
      Stress Bolts, Standard Grade 8

    • Cylinders

      Cylinders

      •  
      •  
      •  

      Innovative Cylinders

      The proven design of the Ariel cylinder eliminates the cost of a cylinder cooling system and removes the complexity and maintenance problems associated with water cooling, such as scaling and corrosion.

      • Horizontal single or double-acting, ion-nitrided, non-cooled compressor cylinders
      • Plugged indicator connections on the head end and crank end
      • SAE series 4100 steel piston rods, ion-nitrided with rolled threads
      • Pistons of wear-resistant gray iron or ductile iron
      • Non-metallic piston and rider rings
      • Full floating, vented rod and wiper packings
      • Non-metallic plates in suction and discharge valves
    • Drag sliders to narrow cylinder choices

      Bore
       
      Pressure
       
      Operation Class BORE (inch) MAWP (psig) Material
      Double-Acting 4-5/8ET 4.250; 4.625 2600 Ductile Iron
      Double-Acting 5-1/2ET 5.125; 5.500 1725 Ductile Iron
      Double-Acting 6-3/8ET 6.000; 6.375 1270 Ductile Iron
      Double-Acting 6-3/8ET 6.000; 6.375 1650 Ductile Iron
      Double-Acting 7-3/8ET 7.000; 7.375 845 Ductile Iron
      Double-Acting 7-3/8ET 7.000; 7.375 1135 Ductile Iron
      Double-Acting 7-3/8ET 7.000; 7.375 1440 Ductile Iron
      Double-Acting 8-3/8ET 8.000; 8.375 635 Ductile Iron
      Double-Acting 8-3/8ET 8.000; 8.375 800 Ductile Iron
      Double-Acting 9-3/4ET 9.250; 9.750 635 Ductile Iron
      Double-Acting 11-1/2ET 11.000; 11.500 635 Ductile Iron
      Double-Acting 12-1/4ET 11.750; 12.250 635 Ductile Iron
      Double-Acting 13-1/2ET 13.000; 13.500 300 Ductile Iron
      Double-Acting 15-3/4ET 15.250; 15.750 200 Ductile Iron
      Double-Acting 17-1/4ET 16.750; 17.250 230 Ductile Iron
      Double-Acting 19-1/2ET 19.000; 19.500 200 Ductile Iron
      Double-Acting 22-1/2ET 22.500 205 Ductile Iron
      Tandem 5-1/2ET-HE 5.125; 5.500 1800 Ductile Iron
      Tandem 9-3/4ET-CE 9.250; 9.750 635 Ductile Iron
      Double-Acting 6-1/4T 5.875; 6.250 2050 Ductile Iron
      Double-Acting 6-1/4T 5.875; 6.250 2435 Ductile Iron
      Double-Acting 7-1/4T 6.750; 7.250 1900 Ductile Iron
      Double-Acting 7-1/4T10 6.750; 7.250 2415 Ductile Iron
      Double-Acting 8-3/8T 7.875; 8.375 1895 Ductile Iron
      Double-Acting 8-3/8T 7.875; 8.375 2400 Ductile Iron
      Double-Acting 9-5/8T 9.125; 9.625 1270 Ductile Iron
      Double-Acting 9-5/8T 9.125; 9.625 1900 Ductile Iron
      Double-Acting 11T 10.500; 11;00 845 Ductile Iron
      Double-Acting 11T 10.500; 11.000 1270 Ductile Iron
      Double-Acting 12-1/2T 12.000; 12.5000 635 Ductile Iron
      Double-Acting 12-1/2T 12.000; 12.5000 800 Ductile Iron
      Double-Acting 14-1/8T 13.625; 14.125 635 Ductile Iron
      Double-Acting 14-1/8T 13.625; 14.125 815 Ductile Iron
      Double-Acting 15-7/8T 15.375; 15.875 635 Ductile Iron
      Double-Acting 17-7/8T 17.375; 17.875 445 Ductile Iron
      Double-Acting 20-1/8T10 19.625; 20.125 345 Ductile Iron
      Double-Acting 22T 22.000 285 Ductile Iron
      Double-Acting 24-1/8T 24.125 275 Ductile Iron
      Double-Acting 26-1/2T 26.500 230 Ductile Iron
      Bore
       
      Pressure
       
      Operation Class BORE (mm) MAWP (bar) Material
      Double-Acting 4-5/8ET 108; 117 179 Ductile Iron
      Double-Acting 5-1/2ET 130; 140 119 Ductile Iron
      Double-Acting 6-3/8ET 152; 162 88 Ductile Iron
      Double-Acting 6-3/8ET 152; 162 114 Ductile Iron
      Double-Acting 7-3/8ET 178; 187 58 Ductile Iron
      Double-Acting 7-3/8ET 178; 187 78 Ductile Iron
      Double-Acting 7-3/8ET 178; 187 99 Ductile Iron
      Double-Acting 8-3/8ET 203; 213 44 Ductile Iron
      Double-Acting 8-3/8ET 203; 213 55 Ductile Iron
      Double-Acting 9-3/4ET 235; 248 44 Ductile Iron
      Double-Acting 11-1/2ET 279; 292 44 Ductile Iron
      Double-Acting 12-1/4ET 298; 311 44 Ductile Iron
      Double-Acting 13-1/2ET 330; 343 21 Ductile Iron
      Double-Acting 15-3/4ET 387; 400 14 Ductile Iron
      Double-Acting 17-1/4ET 425; 438 16 Ductile Iron
      Double-Acting 19-1/2ET 483; 495 14 Ductile Iron
      Double-Acting 22-1/2ET 572 14 Ductile Iron
      Tandem 5-1/2ET-HE 130; 140 124 Ductile Iron
      Tandem 9-3/4ET-CE 235; 248 44 Ductile Iron
      Double-Acting 6-1/4T 149; 159 2050 Ductile Iron
      Double-Acting 6-1/4T 149; 159 2435 Ductile Iron
      Double-Acting 7-1/4T 171; 184 1900 Ductile Iron
      Double-Acting 701/4T10 171; 184 2415 Ductile Iron
      Double-Acting 8-3/8T 200; 213 1895 Ductile Iron
      Double-Acting 8-3/8T 200; 213 2400 Ductile Iron
      Double-Acting 9-5/8T 232; 245 1270 Ductile Iron
      Double-Acting 9-5/8T 232; 245 1900 Ductile Iron
      Double-Acting 11T 267; 279 845 Ductile Iron
      Double-Acting 11T 267; 279 1270 Ductile Iron
      Double-Acting 12-1/2T 305; 318 635 Ductile Iron
      Double-Acting 12-1/2T 305; 318 800 Ductile Iron
      Double-Acting 14-1/8T 346; 359 635 Ductile Iron
      Double-Acting 14-1/8T 346; 359 815 Ductile Iron
      Double-Acting 15-7/8T 391; 403 635 Ductile Iron
      Double-Acting 17-7/8T 441; 454 445 Ductile Iron
      Double-Acting 20-1/8T10 499; 511 345 Ductile Iron
      Double-Acting 22T 559 285 Ductile Iron
      Double-Acting 24-1/8T 613 275 Ductile Iron
      Double-Acting 26-1/2T 673 230 Ductile Iron

    • Parts

      Ariel original equipment parts


    • Genuine Ariel Parts

      Ariel original equipment parts are designed, engineered, and manufactured specifically for your JG or JGAJGC or JGDJGE, JGK, or JGTJGJJGHJGM or JGPJGN or JGQJGRKBV or KBBKBZ or KBU compressor. Discover why Ariel's comprehensive parts program will maximize the life of your compressor.

      Explore Ariel Parts

      Trusted Ariel Distributors

      Ariel OEM parts are marketed through a long-established network of qualified distributors who have unmatched expertise in the compression industry. Our distributors are available to help you select the best parts and services required to maintain the efficiency and dependability of your Ariel compressor.

      Find A Distributor


    • Support

      Ariel is committed to supporting our compressors for life. We pride ourselves on the manufacturing practices and engineering support behind our world class compression technologies. Through unmatched customer service and a global distribution network, Ariel will provide you with best-in-class compression solutions that reduce downtime and improve application performance.