Largre size JOINTED O-RING
What is JOINTED O-RING ?
It's a way to make an O-ring any size you want.
Conventionally, O-rings without molds were used by connecting extruded rubber strings with adhesives.
This method had problems with the strength, heat resistance, chemical resistance, and sealing performance of the adhesive part.
JOINTED O-RING is molded by press vulcanization, which is the original molding method of rubber, so no adhesive is used.
Therefore, it has the same performance as ordinary molded products.
This JOINTED O-RING molding is a technique for molding special dimensions that are not specified in JIS and AS standards, and because it does not require a mold for single items and small lots, large-diameter O-rings can be produced at low cost and in a short delivery time. product can be manufactured. Since molding is performed using various types of equipment dedicated to joint molding, the finish, appearance, and dimensional accuracy are stable.
How to make JOINTED O-RING ?
『What difference between JOINTED O-RING and rubber bonding?』
Once Rubber vulcanized, it cannot be bonded uniformly except for some materials. In this case, adhesive is used as a method of connection (bonding), but there is a bonding line, so it may cause damage to O-ring.
Since all the processes of JOINTED O-RING are stamping (press processing), vulcanize each other, there is not bonding line.
Since all the processes of JOINTED O-RING are stamping (press processing), vulcanize each other, there is not bonding line.
Mold list
■ mold list 【O-ring】
| C.S | tollarance | minimum inner diameter | C.S | tollarance | minimum inner diameter |
| φ3.00 | ±0.10 | 160～ | φ11.0 | ±0.30 | 300～ |
| φ3.10 | 160～ | φ12.0 | ±0.40 | 300～ | |
| φ3.50 | 160～ | φ12.7 | 300～ | ||
| φ3.53 | 160～ | φ13.0 | 300～ | ||
| φ4.00 | 160～ | φ14.0 | 300～ | ||
| φ4.50 | ±0.12 | 160～ | φ15.0 | 300～ | |
| φ5.00 | 160～ | φ16.0 | 300～ | ||
| φ5.33 | 160～ | φ17.0 | 300～ | ||
| φ5.50 | ±0.13 | 500～ | φ18.0 | 300～ | |
| φ5.70 | 160～ | φ19.0 | 500～ | ||
| φ6.00 | 160～ | φ20.0 | 500～ | ||
| φ6.50 | 280～ | φ20.5 | 500～ | ||
| φ6.98 | ±0.15 | 160～ | φ22.0 | 550～ | |
| φ7.50 | 160～ | φ25.0 | 800～ | ||
| φ8.00 | 160～ | φ26.0 | 800～ | ||
| φ8.40 | 160～ | φ27.0 | 800～ | ||
| φ9.00 | 300～ | φ28.0 | 800～ | ||
| φ9.50 | ±0.30 | 300～ | φ30.0 | 800～ | |
| φ10.0 | 160～ | φ35.0 | 800～ | ||
| φ10.5 | 300～ | φ40.0 | 800～ |
■ mold list 【square・square circle・square angle】
| square | square-circle | square-angle | |||
| C.S | minimum inner dia | C.S | minimum inner dia | C.S | minimum inner dia |
| 7 | 500～ | 8 | 310～ | 8 | 255～ |
| 8 | 350～ | 10 | 315～ | 10 | 255～ |
| 9.5 | 500～ | 12 | 320～ | 12 | 320～ |
| 10 | 500～ | 15 | 350～ | ||
| 12 | 350～ | 16 | 350～ | 16 | 468～ |
| 13 | 500～ | 20 | 620～ | ||
| 15 | 350～ | ||||
| 16 | 350～ | ||||
| 20 | 350～ | ||||
| C.S | A | B | H | R |
| 8 | 8 | 4 | 8 | 4 |
| 10 | 10 | 5 | 10 | 5 |
| 12 | 12 | 6 | 12 | 6 |
| 15 | 15 | 7.5 | 15 | 7.5 |
| 16 | 16 | 8 | 16 | 8 |
| C.S | A | B | H | R |
| 8 | 8 | 4 | 8 | 2.8 |
| 10 | 10 | 5 | 10 | 2.8 |
| 12 | 12 | 6 | 12 | 3 |
| 16 | 16 | 8 | 16 | 4 |
| 20 | 20 | 10 | 20 | 5 |
