Pneumatic Seals
SAKAGAMI Application Guide – Pneumatic Seals
| Product | Cross Section | Material No. | Pressure (kgf/cm²) |
Speed (m/s) |
Temperature (°C) |
Remarks |
|---|---|---|---|---|---|---|
| PGY – Packings (exclusively for pistons) |
 |
RN713 | Max. 10 | Max. 1 | -25 ~ 80 | Wear-resistant seals featuring stabilized sealing performance over extended periods of time, used for lubricating or pre-lubricated cylinders.
Page: PGY 11, PNY 12 |
| PNY – Packings (exclusively for rods) |
 |
RN713 | Max. 10 | Max. 1 | -25 ~ 80 | |
| GLY – Packings (for rods and pistons) |
 |
RN701 | Max. 10 | Max. 1 | -25 ~ 70 | Exclusively used for pre-lubricated cylinders. Applicable either to piston or rod.
Page: GLY 13 |
| Mini Y – Packings (for rods and pistons) |
 |
RN703 | Max. 8 | Max. 0.4 | -25 ~ 80 | Small cross section type for solenoid valves. Interchangeable with O-rings of JIS B 2401-P series.
Page: MY 14 |
| PSD – Packings (exclusively for pistons) |
 |
RN713 | Max. 10 | Max. 1 | -25 ~ 80 | Compact pneumatic seals used for lubricating or pre-lubricated cylinders. Excellent frictional resistance without fear of twisting or distortion. Use these in combination with PDU – Packings.
Page: PSD 15 |
| PDU – Packings (exclusively for rods) |
 |
RN715 | Max. 10 | Max. 1 | -25 ~ 80 | Function as both seal and dust wiper. Used for pre-lubricated cylinders. Compact design applicable to rod housings of cylinders, contributing to cost savings. Use these in combination with PSD – Packings.
Page: PDU 16 |
| PPY – Packings (exclusively for pistons) |
 |
RN713 | Max. 10 | Max. 1 | -25 ~ 80 | Small cross section type for lubricating or pre-lubricated cylinders. Minimum frictional resistance ideal for use on small-diameter cylinder or solenoid valves.
Page: PPY 17, PRY 17 |
| PRY – Packings (exclusively for rods) |
 |
RN713 | Max. 10 | Max. 1 | -25 ~ 80 |
SAKAGAMI Application Guide – Hydraulic Seals
| Product | Cross Section | Material No. | Pressure (kgf/cm²) |
Speed (m/s) |
Temperature (°C) |
Remarks |
|---|---|---|---|---|---|---|
| GPY – Packings (exclusively for pistons) |
 |
RN919 | Normal: 175
With back-up With sec. back-up |
Normal: 1
With back-up With sec. back-up |
-30 ~ 100 | High-wear-resistant packings recommendable for severe service conditions on construction machinery or industrial robots. Excellent in low-temperature resistance/radial force resistance, and free from damages by back-pressure.
Page: GPY 3, GNY 4 |
| GNY – Packings (exclusively for rods) |
 |
RN919 | Normal: 175
With back-up With sec. back-up |
Normal: 1
With back-up With sec. back-up |
-30 ~ 100 | |
| SKY – Packings (for rods and pistons) |
 |
RN906 | Normal: 140
With back-up |
Normal: 1
With back-up |
-10 ~ 80 | Our most popular series of packings for hydraulic cylinders. Usable either on pistons or rods. Compact system design contributing to reduction of assembly and component costs.
Page: SKY 5 |
| KY – Packings (for rods and pistons) |
 |
RN906 | Normal: 150
With back-up |
Normal: 1
With back-up |
-10 ~ 80 | Feature abundant size varieties and excellent durability owing to large cross section. Highly stable performance over wide range of applications and service conditions.
Page: KY 7 |
| PENTA – Packings (exclusively for rods) |
 |
RN906 | Normal: 140
With back-up |
Normal: 1
With back-up |
-10 ~ 80 | PENTA seals are interchangeable with O-rings of JIS B-2401 P-series. Offer superior sealing effects compared with O-rings and remain free from distortion and extrusion.
Page: PS 9 |
SAKAGAMI Application Guide – General
| Product | Cross Section | Material No. | Pressure (kgf/cm²) |
Speed (m/s) |
Temperature (°C) |
Remarks |
|---|---|---|---|---|---|---|
| SFR – Wipers (exclusively for rods) |
 |
RN912 | — | Max. 1 | -30 ~ 100 | Protect seals from exterior dust.
– SFR-Wipers of low friction are for use on pneumatic indoor cylinders. – SDR-Wipers, easy installation by snapping up into one groove. – SCB-Wipers are metal casing type inserted into grooves by press fitting. – SER-Wipers are ideal for applications on valves or small diameter cylinders placed indoors. Page: SFR 18, SDR 19, SCB 21, SER 23 |
| SDR – Wipers (exclusively for rods) |
 |
RN906 | — | Max. 1 | -25 ~ 100 | |
| SCB – Wipers (exclusively for rods) |
 |
RN807 | — | Max. 1 | -40 ~ 100 | |
| SER – Wipers (exclusively for rods) |
 |
RN906 | — | Max. 0.5 | -25 ~ 100 | |
| PCS – Cushion Seals |
 |
RN803 | Max. 10 | Max. 0.5 | -5 ~ 80 | Absorb shocks at stroke ends of cylinders, prevent damage and impact noise.
– PCS-Cushion Seals are for use on standard pneumatic cylinders. – YCS-Cushion Seals are for use on high-speed pneumatic cylinders or air-hydro cylinders. Page: PCS 25, YCS 26 |
| YCS – Cushion Seals |
 |
PD101 | Max. 10 | Max. 1 | -30 ~ 80 | |
| S – Leeve (WPB type) (exclusively for pistons) |
 |
PN102 | Max. 210 | Max. 1 | -25 ~ 80 | Plastic bearings also serving as backup rings used in combination with SKY-Packings. Prevent scoring of piston/rod sections, while improving pressure resistance and durability of seals.
Page: WPB 27, WRB 28 |
| S – Leeve (WRB type) (exclusively for pistons) |
 |
PN102 | Max. 210 | Max. 1 | -25 ~ 80 | |
| S – LITE Wear Rings (exclusively for pistons) |
 |
PB201 | — | Max. 3 | -55 ~ 120 | Made of fabric-reinforced phenol resin. Excellent load characteristics to prevent from seizure between cylinder wall and piston or from scoring of piston. SWA and SWB Wear Rings available for low-load applications.
Page: SW 29, SWA 31, SWB 32 |
| SWA – Wear Rings (exclusively for pistons) |
 |
PB201 | — | Max. 3 | -55 ~ 120 | |
| SWB – Wear Rings (exclusively for pistons) |
 |
PB251 | — | Max. 3 | -55 ~ 120 | |
| PG – Rings (PGO type) (exclusively for pistons) |
 |
PT111 | Max. 210 | Max. 1 | -55 ~ 80 | Protect seals from surge pressure in use under high-pressure conditions, thus extending sealing life. Ideal for systems where heavy loads are applied of intense vibration exists.
Page: PGO 33, PGI 34 |
| PG – Rings (PGI type) (exclusively for rods) |
 |
PT111 | Max. 210 | Max. 1 | -55 ~ 80 |