Welcome to Hydro Design Service Inc. and Hydraulic Super Shop Ph: 615-758-9096 Fax: 615-758-9211
     Welcome to Hydro Design Service Inc.            and Hydraulic Super Shop    Ph: 615-758-9096     Fax: 615-758-9211          

 

Peninsular    Model MH -  NFPA, Air Cylinders 
                             Heavy-Duty, Steel Construction
                             (250 PSI Rated)

 

 

 

 

 

 >  CYLINDER SIZING CHARTS & 
     APPLICATION DATA SHEETS

 >  FEATURES & ADVANTAGES

 >  CYLINDER ACCESSORIES

 >  CYLINDER FORCE CHARTS

 >  CYLINDER REPAIR DIVISION

Longer Lasting, High Quality, Air Cylinders !

Designed To Survive In Destructive Applications
    where other Air Cylinders have Failed

Internally Pre-Lubricated for Life (No In-Line Oilers)

  • 1 1/2" to 24" Bore Sizes   ( > View FORCE CHARTS)

  • All NFPA Mounting Styles, Piston Rod Diameters and Rod Thread Sizes available

  • All Cylinder Special Options and Features available

  • Repairable Air Cylinder with a Removable Rod Cartridge

  • Model MH Cylinders may also be custom designed to suit specific customer applications. Stainless steel or electroless nickel plated equivalent cylinders, for this model, are also available.

  • Improved Adjustable Cushion Design

  • Longer Lasting Improved Nitrile Seals

 

 

HOW TO ORDER MODEL MH:


For your convenience, please refer to the 'How to Order Brochure". Just follow steps A thru J in the example creating your Cylinder Callout No.

 

We would like to give you two easy ways to view our 'How to Order Brochure".

 

 

Features

Advantage

Benefit

1. Heads and Caps

Square, precision-machined steel.

Assures concentricity of tube, bearing, cushion and piston rod. Can be made proximity switch ready to accept same probe-length switches at each end without spacers.

2. Cylinder Tube

D.O.M. seamless 1020 to 1026 steel; precision honed to 12/15 micro inch finish; hard chrome plated .0003/.0005” thick on ID.

Resists wear, corrosion and dents; reduces wear on piston seals.

3. Wear Band

Delrin™ material. 

Creates low friction, long lasting wear surface which prevents scoring of cylinder tube inner wall.

4. Lubrication
    Reservoirs

Located underneath wear band inside piston and also inside the bearing cartridge.
 

Provides effective way of metering maximum amount of lubricant to all areas over long time period. Not subject to air turbulence and contamination.

5. Lubricant
   (not shown)

Teflon™ based grease is standard. USDA food grade approved grease is optional.

Long lasting lubrication of piston seals, inner cylinder wall surface and rod bearing cartridge seals and ID.

6. Piston

One-piece steel, black oxided with uniform cushion hubs on both sides, threaded onto piston rod, staked and secured with Loc-Tite™.

Prevents rusting and air leakage; anchored onto piston rod withminimum undercut providing maximum strength. Additional pinning onto rod optional.

7. Tube Seals

Buna-N Nitrile axial placed O-Rings. 

When combined with accurately torqued tie rods, prevents extrusion of seal and air leaks under pressure.

8. Cushion
    Adjustment Screw

Steel needle valve with Buna-N O-ring sealed screw, held captive with locking snap ring.

Accurate fine adjustment of cushioning speed; no air leakage and safe for all users due to internal captive screw.

9. Rod Seal

80 durometer, rounded lip, pre-lubricated, carboxylated nitrile cup style.

Smears grease through ID of rod cartridge extending seal life within. Resists abrasion; significantly increases life and prevents leakage around piston rod.

10. Rod Wiper

80 durometer, sharp double lip, pre-lubricated, carboxylated nitrile seal  Provides additional sealing benefit beyond the rod seal.

Inside edge always lubricated extends life significantly, prevents dirt and grit from entering bearing and cylinder.

11. Piston Rod

High yield strength steel, case hardened OD to 50-55 RC. Core hardness to 28-34 RC. Hard chrome plated .0003/.0005” thick and polished to 12/15 micro inch finish. Rolled threads.

Resists wear. All NFPA rod and thread sizes, including female and studded male ends available, plus metric threads. Provides positive connections to existing machine components.

12. Bearing Cartridge

Floating, self-aligning in either ductile iron or SAE 660 bronze with internal lubrication reservoir. Special “Slip Tuff” coated cartridge is also available for heavy side loaded applications. Retained by plate with cap screws; strong and shock resistant. A Buna-N O-ring located around the cartridge OD prevents leakage.

Float condition minimizes piston rod misalignment by reducing side loading. ID of bearing cartridge, rod seal and rod wiper lubricated on each stroke, reducing wear.Easily removed for maintenance without special tools to disassemble cylinder. Optional “Slip Tuff” bearing provides lubristic wear surface with hardness characteristics that significantly reduce galling and bearing cartridge failure under severe side loaded operating conditions.

13. Tie Rods

Made from 100,000 psi minimum yield, stress-proof, medium carbon steel with rolled threads at each end.

Provides maximum strength for connecting cylinder mounts and used with lock nuts to prevent loosening in service. Accurate torquing prevents leaks at tube seals.

14. Cushion Hubs

Steel with 8/12 micro inch finish RMS. Black oxided to prevent rusting and corrosion.

Uniform on each side of piston to eliminate different size cushion seals and reduce spare parts inventory. Smooth surface stops cushion seal wear and provides air-tight accurate operation. Ideal for proximity switch applications.

15. Piston Seals

80 durometer, rounded lip, pre-lubricated, carboxylated nitrile U cups. 

Resists abrasion; when used with Peninsular's internal lubrication system, provides considerably less wear and increases operating life.

16. Cushion Seals

90 durometer floating check type Urethane seals eliminate ball checks and related parts.

Low friction breakaway and 100% air-tight cushioning assures smooth maximum effectiveness.Metal to metal cushions are eliminated and same size seals at each end reduce parts inventory.

17. Ports

NPT standard, SAE O-ring optional.  Metric and other thread size options.

Universally adaptable to any hose or fitting.

18. Optional Proximity
     Switch Capability
     (not shown)

Allows for non-contact piston position sensing at near end of stroke. Precision machined cylinder heads and piston cushion hubs allow for in-port mounting of “RF inductive” proximity switches using the same switch probe length at each cylinder end without shims or spacers underneath the switch.

Self-contained switch probe not subject to contamination. This patented design creates the same air gap between the sensing probe and target (cushion hubs), thus providing consistent, reliable and repeatable stroke-to-go. Eliminates the design and construction of brackets necessary to mount mechanical limit switches.

 

 

 

https://www.peninsularcylinders.com/products/air-cylinders/nfpa-heavy-duty-steel/

 

Peninsular     Model LM -  NFPA, Air Cylinders 
                             Medium-Duty, Aluminum
 Construction
                         
    (250 PSI Rated)

 

 

 

 >  CYLINDER SIZING CHARTS & 
     APPLICATION DATA SHEETS

 >  FEATURES & ADVANTAGES

 >  CYLINDER ACCESSORIES

 >  CYLINDER FORCE CHARTS

 >  CYLINDER REPAIR DIVISION

 

Longer Lasting, High Quality, Air Cylinders !

Designed To Survive In Destructive Applications
    where other Air Cylinders have Failed

Internally Pre-Lubricated for Life (No In-Line Oilers)

  • 1 1/2" to 12" Bore sizes   ( > View FORCE CHARTS)
  • All NFPA Mounting Styles, Piston Rod Diameters and Rod Thread Sizes available
  • All Cylinder Special Options and Features available
  • Repairable Air Cylinder with a Removable Rod Cartridge
  • Model LM Cylinders may also be custom designed to suit specific customer applications. Stainless steel or electroless nickel plated equivalent cylinders, for this model, are also available.
  • Improved Adjustable Cushion Design
  • Longer Lasting Improved Nitrile Seals

 

 

HOW TO ORDER MODEL LM:


For your convenience, please refer to the 'How to Order Brochure". Just follow steps A thru J in the example creating your Cylinder Callout No. We would like to give you two easy ways to view our 'How to Order Brochure".

 

 

 

Feature

Advantage

Benefit

1. Heads and Caps

Square, precision-machined 6061T6 anodized aluminum. Corrosion resistant. Assures concentricity of tube, bearing, cushion and piston rod. Can be made proximity switch ready to accept same probe-length switches at each end without spacers.

2. Cylinder Tube

Solid 6061T6 aluminum tube; precision honed to 12/15 micro inch finish; hard coat anodized .001" thick on both ID and OD. Resists wear and corrosion; also reduces wear on piston seals.

3. Wear Band

Delrin™ material. Creates low friction, long lasting wear surface, which prevents scoring of cylinder tube inner wall. Will not expand with moisture.

4. Lubrication
Reservoirs

Located underneath wear band inside piston and also inside the bearing cartridge. Provides effective way of metering maximum amount of lubricant to all areas over a long time period. Not subject to air turbulence and contamination.

5. Lubricant
(not shown)

Teflon™ based grease. Long lasting lubrication of piston seals, inner cylinder wall surface, bearing cartridge ID, rod seal and rod wiper.

6. Piston

One-piece precision-machined 6061T6 hard coat anodized aluminum or steel piston with uniform polished steel, black oxided, cushion hubs on both sides, threaded onto piston rod, staked and secured with Loc-Tite™. Prevents corrosion and air leakage; anchored onto piston rod with minimum undercut providing maximum strength. Additional pinning onto rod is optional. Aluminum piston required for magnetic piston sensing - see #19.

7. Tube Seals

Buna-N Nitrile axial placed O-Rings. When combined with accurately torqued tie rods, prevents extrusion of seal and air leaks under pressure.

8. Cushion
Adjustment Screw

Steel needle valves with Buna-N O-Ring sealed screws, held captive with locking snap rings. Accurate fine adjustment of cushioning speed; no air leakage and safe for all users due to internal captive screws.

9. Rod Seal

80 durometer, rounded lip, pre-lubricated, carboxylated nitrile cup style. Smears grease through ID of bearing cartridge extending seal life within. Resists abrasion; significantly increases life and prevents leakage around piston rod.

10. Rod Wiper

80 durometer, sharp double lip, pre-lubricated, carboxylated nitrile seal. Provides additional sealing benefit beyond the rod seal. Inside edge always lubricated extends life significantly, prevents dirt and grit from entering bearing cartridge and cylinder.

11. Piston Rod

High yield strength steel, case hardened OD to 50-55 RC. Core hardness to 28-34 RC. Hard chrome plated .0003/.0005” thick and polished to 12/15 micro inch finish. Rolled threads. Resists wear. All NFPA rod and thread sizes, including female and studded male ends available, plus metric threads. Provides positive connections to existing machine components.

12. Bearing Cartridge

Floating, self-aligning in either ductile iron or SAE 660 bronze with internal lubrication reservoir. Optional "Slip Tuff" coated cartridge is also available for heavy side loaded applications.Retained by plate with cap screws; strong and shock resistant. A Buna-N O-ring located around the cartridge OD prevents leakage. Float condition minimizes piston rod misalignment by reducing side loading. ID of bearing cartridge, rod seal and rod wiper lubricated on each stroke,reducing wear. Easily removed for maintenance without special tools to disassemble cylinder. Optional "Slip Tuff" bearing provides lubristic wear surface with hardness characteristics that significantly reduce galling and bearing cartridge failure under severe side loaded operating conditions.

13.Tie Rods

Made from 100,000 psi minimum yield, stress-proof, medium carbon steel with rolled threads at each end. Provides maximum strength for connecting cylinder mounts and used with lock nuts to prevent loosening in service. Accurate torquing prevents leaks at tube seals.

14. Cushion Hubs

Steel with 8/12 micro inch finish RMS. Black oxided to prevent rusting and corrosion. Steel material permits the use of in-port cylinder head mounted proximity switches. Uniform on each side of piston to eliminate different size cushion seals and reduce spare parts inventory. Smooth surface stops cushion seal wear and provides air-tight accurate operation. Ideal for proximity switch applications.

15. Piston Seals

80 durometer, rounded lip, pre-lubricated, carboxylated Nitrile U-Cups. Resists abrasion; when used with Peninsular's internal lubrication system, provides considerably less wear and increases operating life.

16. Cushion Seals

90 durometer floating check type Urethane seals eliminate ball checks and related parts. Low friction breakaway and 100% air-tight cushioning assures smooth maximum effectiveness. Metal to metal cushions are eliminated and same size seals at each end reduce parts inventory.

17. Ports

NPT standard, SAE O-Ring optional. Metric and other thread size options. Universally adaptable to any hose or fitting.

18. Optional Proximity Switch Capability (not shown)

Allows for non-contact piston position sensing at near end of stroke. Precision machined cylinder heads and piston cushion hubs allow for in-port mounting of “RF inductive” proximity switches using the same switch probe length at each cylinder end without shims or spacers underneath the switch. Self-contained switch probe not subject to contamination. This patented design creates the same air gap between the sensing probe and target (cushion hubs), thus providing consistent, reliable and repeatable stroke-to-go. Eliminates the design and construction of brackets necessary to mount mechanical limit switches. US Pat. No. 4,726,282 & D 295,753

19. Optional Piston Magnet (not shown, but located under wear band)

Tie-rod mounted reed switches can sense high gauss, shunted “rare-earth material” magnet, anywhere along the cylinder stroke. Stronger magnetism outside of the cylinder tube insures actuation of the reed switch. Tie-rod mounted reed switches sense strong magnetic field provided by shunted magnet in aluminum piston, allowing piston rod location to be determined wherever external switches are placed. Reed switches may be locked onto tie-rods at factory, as an option, to prevent sliding due to cylinder vibration

https://www.peninsularcylinders.com/products/air-cylinders/nfpa-medium-duty-aluminum/

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