One Ear Clamps
One ear clamps are a quick to apply, simple and economical clamp for assembly of many hose fixings. Those ear clamps do not damage the hose during tightening. They can be used all type of air and fluid hose systems.
As a long-standing ear clamp manufacturer, ARMA Fixing produces robust single ear hose clamps (also called one ear pipe clamps) for pneumatic, coolant and low-pressure fluid systems. The single ear is compressed with pincers, creating a tamper-proof, 360° seal that will not loosen under vibration.
• W1 zinc-plated carbon steel or W4 AISI 304 stainless
• Smooth inner band & rounded edges prevent hose damage
• Inner ring option delivers uniform pressure on thin-wall tubes
• Sizes: Ø 7 mm to 25 mm across multiple bandwidths
Need higher holding force? See our double ear hose clamps range.
• Automotive / EV (Vacuum & washer hoses, small coolant lines)
• White-Goods (Dishwasher & washing-machine water feeds)
• Medical / Lab (Silicone tubing on barbed fittings)
• HVAC Controls (Capillary tubes & thermostat lines)
• Agriculture (Light fuel hoses on small engines)
• Compressed-Air Systems (PVC hoses up to 10 bar)
All batches ship with material and RoHS certificates—see our certificates page.
| Parameter | Values / Options |
| Clamp Ø (range) | 7–25 mm in 2 mm increments |
| Band width (B) | 5.5–10 mm, size dependent |
| Band thickness | 0.8–1.1 mm |
| Inner-ring versions | Available for extra pressure uniformity |
| Material grades | W1 Zn-plated steel |
| Standards / Tests | DIN geometry, ISO 9227 salt-spray, vibration per DIN 3010 |
Download full Technical Data (PDF, 0.1 MB)
ARMA Fixing pairs precision manufacturing with a deep sustainability ethos.
• Lean, automated lines with in-die measurement keep defect levels < 40 ppm.
• Traceability 4.0: every coil and clamp is logged for end-to-end QR tracking.
• Green operations: 35 % solar power, closed-loop rinse water, low-VOC zinc processes.
• Certifications: IATF 16949, ISO 9001, 14001, 45001 (details on certificates).
Engineering support is a call away—share your hose spec via the contact page and our team will match the optimal clamp size, material and compression force.