C-660
KYA
KYA-C-660
280mm x 230mm x 100mm
1.74KG/ 3.84 LBS
125 PCS
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KYA C-660 is an industrial pneumatic hog ringer designed for 16 gauge C-style hog rings used in mattress production, automotive upholstery, furniture, wire cages, fencing, netting, bag closure and other repetitive fastening applications.
The tool weighs approximately 1.74kg and uses a 125-ring magazine. It is designed for C-rings with approximately 16.9mm outside crown, 12.5mm / 1/2 inch inner crown, 1.6mm wire and approximately 3.0mm finished closure.
The C-660 belongs to the common 16GA SC660 / C17 / 516-type pneumatic C-ring class. Fastener compatibility should be confirmed by outside crown, inner crown, wire diameter, ring height, closure and strip geometry rather than by gauge alone.

| Specification | Details |
| Model | C-660 |
| Tool Type | Pneumatic C-Ring Hog Ringer |
| Tool Dimensions | 280 × 230 × 100mm |
| Net Weight | Approx. 1.74kg / 3.84lbs |
| Magazine Capacity | 125 Rings |
| Operating Pressure | 4–7 bar / Approx. 58–102 PSI |
| Air Inlet | KYA Listed: 6mm |
| Fastener Type | 16 Gauge C-Style Hog Rings |
| Outside Crown | Approx. 16.9mm / 5/8" |
| Inner Crown | Approx. 12.5mm / 1/2" |
| Wire Diameter | Approx. 1.6mm / 0.063" |
| Ring Height | Approx. 8.5–9.0mm |
| Typical Closure | Approx. 3.0mm; comparable tools typically operate around 2.6–3.6mm |
| Compatible Fastener Class | 516G100 / SC660 / C17-Type 16GA C-Rings |
| Muzzle | High-Strength Alloy Steel |
| Typical Applications | Mattresses, Upholstery, Automotive Seats, Cages, Fencing, Mesh, Netting and Bag Closure |
The C-660 is designed around a common 16 gauge pneumatic C-ring format. The fastener has an approximately 16.9mm outside crown, 12.5mm inner crown and 1.6mm wire diameter.
This format is widely described under fastener references such as C17, SC660 and 516-type rings. The naming system can vary between manufacturers, so the actual ring dimensions should always be compared before substitution.
The same C-ring can be described using two different crown measurements. Approximately 12.5mm / 1/2 inch refers to the inner open crown, while approximately 16.9mm / 5/8 inch refers to the outside crown.
Buyers should check both dimensions because product listings that use only one crown measurement can make two different C-ring systems appear similar.
Compatible C-rings use approximately 1.6mm wire, corresponding to the standard 16 gauge SC660 / C17 fastening class.
Wire diameter is important for both magazine feeding and ring forming. A ring with a similar crown but 1.8mm wire belongs to a different fastener class and should not automatically be used in the C-660.

KYA lists the C-660 with an approximately 3.0mm closure. Comparable 16GA 16.9mm pneumatic C-ring tools commonly operate in a range of approximately 2.6–3.6mm.
The correct closure depends on the diameter of the wire, spring, fabric, mesh or other material being captured by the ring. The smallest possible closure should not automatically be considered the best setting for every application.
The C-660 holds approximately 125 compatible C-rings, allowing longer fastening runs between reloads compared with smaller-capacity pneumatic ring tools.
For reliable feeding, use correctly collated strips and avoid loading bent, damaged or incorrectly sized rings.

The C-660 uses a balanced pneumatic tool layout with a rubber grip for repetitive fastening. At approximately 1.74kg, the tool is intended for production environments where operators perform repeated ring-closing cycles.
Balanced handling and pneumatic operation can reduce the manual force required compared with hand pliers, although operator comfort also depends on workstation height, hose routing, production rate and shift length.
KYA specifies a high-strength alloy steel muzzle for the C-660. The jaws and muzzle guide the ring during feeding and control the final closing shape.
These components should be checked periodically for wear, contamination or misalignment because jaw condition directly affects ring closure and feeding consistency.
| Fastener Reference | Typical Geometry | Buying Guidance |
|---|---|---|
| C17 | Approx. 16.9mm crown × 8.7–9.0mm height × 1.6mm wire | Common industry reference for this 16GA C-ring class. |
| SC660 | Approx. 16.9mm crown, 1.6mm wire | Common reference associated with SC660 / SC760-type pneumatic tools. |
| 516G100 | Approx. 12.5mm inner crown, 16.9mm outer crown, 1.6mm wire | Comparable 16GA 1/2-inch C-ring system; confirm strip geometry and closure. |
| Other 16GA C-Rings | Must match full dimensions | Do not select by gauge alone. |
| Feature | C-660 Class | C7 / C-7EA Class |
|---|---|---|
| Gauge | 16GA | 15GA |
| Wire Diameter | Approx. 1.6mm | Approx. 1.8mm |
| Outer Crown | Approx. 16.9mm | Approx. 23.7–24mm |
| Inner Crown | Approx. 12.5mm | Approx. 19mm |
| Typical Closure | Approx. 3mm | Varies by tool, commonly around 4.8–8.8mm |
| Interchangeable? | No. The fastener dimensions and tool jaws are different. | |
Do not substitute 15GA C7, HR23 or 15G100-type rings into the C-660. They use a larger 1.8mm wire and a substantially larger crown.
The C-660 can be used in mattress and bedding production for fastening compatible spring, border wire, fabric and related components where the 16GA C-ring and approximately 3mm closure are suitable.
Production teams should confirm the finished closure around the actual spring or wire combination before repetitive use.
Pneumatic C-ring tools are widely used to join compatible seat wire, upholstery components and frame elements in automotive seating and furniture production.
The required ring material, point type and closure should be selected according to the wire bundle, fabric and seat construction rather than using one universal setup.
The 16GA C-ring class is also used for pet cages, animal enclosures, wire mesh, fencing and related wire-joining applications.
Select galvanized, stainless-steel or another specified ring material according to indoor or outdoor exposure, moisture and corrosion requirements.
C-rings can be used for selected bag closure, netting and mesh assembly where the material bundle fits correctly inside the closed ring.
Sharp or blunt-point ring configurations should be chosen according to whether the fastener needs to penetrate material during installation.

Spring mattress manufacturing
Automotive seat upholstery
Furniture upholstery
Pet and animal cages
Wire mesh
Fencing
Netting
Wire connections
Bag closure
Selected cord and fabric fastening

| Ring Material | Selection Consideration |
|---|---|
| Galvanized Steel | General-purpose option for upholstery, mattresses, cages and many indoor or protected applications. |
| Stainless Steel | Higher corrosion resistance for moisture-sensitive or selected exterior applications. |
Confirm the required ring material according to the actual service environment. Stainless steel grade and coating specification should be verified when corrosion resistance is a project requirement.
KYA lists the C-660 operating range at approximately 4–7 bar / 58–102 PSI. Use regulated, clean compressed air and operate within the specified range.
If a ring does not close correctly, check fastener dimensions, jaw condition, feed alignment and air pressure rather than simply increasing pressure.
Inspect closing jaws and muzzle surfaces regularly.
Keep the magazine and ring feed path clean.
Use correctly collated 16GA 16.9mm C-rings.
Check hose connections and fittings for air leakage.
Do not use bent or damaged fastener strips.
Disconnect compressed air before clearing jams or servicing the tool.
Replace worn jaws if ring closure becomes inconsistent.
KYA supplies pneumatic hog ring tools and matching C-rings for mattress factories, automotive seating suppliers, furniture manufacturers, cage producers, fencing suppliers and industrial fastener distributors.
For bulk purchasing, provide the required tool quantity, current fastener model, ring material, ring dimensions, desired closure, application and compressed-air specification.
KYA supplies pneumatic C-ring and D-ring tools in multiple gauges, crown sizes, magazine capacities and closure configurations for mattress, upholstery, automotive, cage, fencing and industrial fastening applications.
The C-660 is designed for 16 gauge C-rings with approximately 16.9mm outside crown, 12.5mm inner crown, 1.6mm wire and approximately 3mm closure.
Yes. The compatible ring has an approximately 1/2 inch inner crown and 5/8 inch / 16.9mm outside crown.
It uses the 16 gauge C-ring class with approximately 1.6mm wire.
KYA lists an approximately 3.0mm closure. Comparable 16GA tools commonly close this ring class to approximately 2.6–3.6mm.
The C-660 magazine holds approximately 125 compatible C-rings.
KYA lists the tool at approximately 1.74kg / 3.84lbs.
KYA lists approximately 4–7 bar / 58–102 PSI.
C17 is a common reference for the same general 16GA 16.9mm crown C-ring class. Confirm actual ring height, strip geometry and closure before bulk use.
SC660 is another market reference for this 16GA C-ring size. Confirm the complete fastener dimensions before substitution.
516G100 belongs to the same general 16GA 1/2-inch inner-crown / 16.9mm outer-crown C-ring class. Verify collation and target closure with the exact tool before production use.
No direct interchangeability should be assumed. 15G100 and HR23 are generally 15GA 1.8mm C-rings with substantially larger crowns.
Yes. Spring mattress and bedding production are established applications for 16GA C-ring tools when the ring closure matches the spring and wire combination.
Yes. Automotive seating and upholstery are common applications when the 16GA C-ring geometry matches the seat components being joined.
Yes. Wire cages, mesh and fencing are suitable applications where the finished ring diameter fits the wire combination.
Stainless-steel rings are available in the 16GA 16.9mm C-ring class. Confirm wire diameter, strip geometry and material specification before use.
No. Balanced pneumatic operation can reduce manual effort, but fatigue also depends on workstation ergonomics, hose arrangement, fastening frequency and shift duration.
Provide the application, quantity, current tool or ring model, ring material, outside and inside crown, wire diameter, target closure and available compressed-air specification.
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