300 Series Stainless Steel Single Ear Stepless Hose Clamps
Stepless O Clip Clamp Overview
When a hose connection fails, the consequences range from minor inconvenience to costly downtime. Glorex single ear stepless hose clamps are engineered to eliminate that risk. Made from 300 series stainless steel, these clamps deliver a continuous 360° seal without steps, gaps, or weak points along the band. The single-ear design concentrates clamping force exactly where it's needed, while the stepless inner circumference ensures even pressure distribution across the entire hose surface.
Whether you're securing a coolant line on a production vehicle, sealing an irrigation manifold, or assembling military-grade air intake components, these clamps hold their grip through vibration, thermal cycling, and pressure fluctuations. The narrow band profile reduces weight and interference in tight assemblies, and the specially ground edges prevent hose damage during installation.
Auto Hose Clamp Key Features and Benefits
Stepless band design for a true 360° seal. Unlike conventional worm-gear clamps that create localized pressure points, the stepless band on these single ear clamps compresses uniformly around the hose circumference. The result is a leak-free connection that maintains integrity even under uneven surface conditions or slight hose irregularities.
Narrow band, concentrated force. The reduced band width translates to higher contact pressure per unit area. This means a lighter clamp with less material usage that still achieves a secure hold—particularly valuable in aerospace and automotive applications where weight savings matter.
Ear geometry for thermal compensation. The single ear acts as a spring element. As the hose expands or contracts with temperature changes, the ear deforms to absorb the dimensional shift and maintain consistent surface pressure. This built-in compensation keeps the connection tight across operating cycles ranging from cold-start conditions to sustained high-temperature operation.
Edge grinding for hose protection. Each clamp undergoes a specialized edge treatment that removes burrs and sharp corners. This detail matters: a smooth edge won't cut into silicone, EPDM, or rubber hose walls during installation or service, extending the life of both the clamp and the hose assembly.
Material integrity. The 300 series stainless steel construction resists corrosion from road salt, coolant additives, and humid environments. The material maintains its mechanical properties across a wide temperature range and does not degrade under typical automotive or industrial exposure.
Stepless O Clip Clamp Ear Clip
Ear Clip Technical Specifications
| Serial number | Specification | clamping force | Serial number | Specification | The inner ear is wide | Clam ping force | Serial number | Specification | The inner ear is wide | Clam ping force |
| S5065 | 5.3-6.5 | 1000N | S7123 | 9.8-12.3 | 8 | 2100N | S7162 | 13.7-16.2 | 8 | 2100N |
| S5070 | 5.8-7.0 | 1000N | S7128 | 10.3-12.8 | 8 | 2100N | S7166 | 14.1-16.6 | 8 | 2100N |
| S5080 | 6.8-8.0 | 1000N | S7133 | 10.8-13. | 8 | 2100N | S7168 | 14.3-16.8 | 8 | 2100N |
| S5087 | 7.0-8.7 | 1000N | S7138 | 11.3-13.8 | 8 | 2100N | S7170 | 14.5-17.0 | 8 | 2100N |
| S5090 | 7.3-9.0 | 1000N | S7140 | 11.5-14.0 | 8 | 2100N | S7175 | 15.0-17.5 | 8 | 2100N |
| S5095 | 7.8-9.5 | 1000N | S7142 | 11.7-14.2 | 8 | 2100N | S7178 | 14.6-17.8 | 10 | 2400N |
| S5100 | 8.3-10.0 | 1000N | S7145 | 12.0-14.5 | 8 | 2100N | S7180 | 14.8-18.0 | 10 | 2400N |
| S5105 | 8.8-10.5 | 1000N | S7148 | 12.3-14.8 | 8 | 2100N | S7185 | 15.3-18.5 | 10 | 2400N |
| S5109 | 9.2-10.9 | 1000N | S7153 | 12.8-15.3 | 8 | 2100N | S7192 | 16.0-19.2 | 10 | 2400N |
| S5113 | 9.6-11.3 | 1000N | S7157 | 13.2-15.7 | 8 | 2100N | S7198 | 16.6-19.8 | 10 | 2400N |
| S5118 | 10.1-11.8 | 2100N | S7160 | 13.5-16.0 | 8 | 2100N | S7210 | 17.8-21.0 | 10 | 2400N |
| S7119 | 9.4-11.9 | 2100N |
Custom sizes and material grades available upon request. Contact our engineering team for application-specific recommendations.
Intercooler Hose Clamp Production Diagram
Gas Hose Clamp Applications
Automotive. These clamps are used across engine coolant circuits, air intake plumbing, turbocharger piping, and fuel vapor lines. The stepless seal prevents coolant seepage and vacuum leaks that trigger check-engine codes. The thermal compensation feature handles the expansion and contraction cycles typical of underhood environments.
Military and defense. Single ear stepless clamps meet the reliability demands of tactical vehicles, field equipment, and portable generator systems. The absence of a worm-gear mechanism eliminates loosening under vibration—a critical failure mode in off-road and combat conditions.
Air intake systems. For naturally aspirated and forced-induction engines, a secure seal on intake couplers prevents unmetered air from entering the system. The narrow band fits into tight engine bays and won't interfere with adjacent components.
Engine exhaust systems. While not intended for high-heat exhaust manifold connections, these clamps secure heat shield tubing, EGR lines, and exhaust gas recirculation hoses where temperatures remain within the material's operating limits.
Cooling and heating systems. HVAC lines, radiator hoses, and heater core connections benefit from the uniform compression and thermal cycling tolerance. The 300 series stainless resists the glycol-based fluids used in closed-loop systems.
Irrigation systems. Agricultural and landscape irrigation manifolds rely on these clamps to hold poly and vinyl tubing connections under constant pressure. The corrosion resistance handles fertilizer injectors and varying water chemistry.
Industrial drainage. Floor drains, condensate lines, and process water piping use single ear clamps where a low-profile, tamper-resistant connection is preferred over threaded or welded fittings.
Why Choose Glorex Single Ear Stepless Clamps
Consistent clamping force. Each production lot is tested for ear deformation force to ensure the clamp delivers the rated clamping force within tolerance. This matters in high-volume assembly operations where every connection must meet the same specification.
Tool compatibility. These clamps work with standard single ear clamp tools, including manual pincers and pneumatic closing tools. No proprietary tooling is required, which simplifies integration into existing production lines.
Traceability. Batch numbers are marked on packaging for material traceability. Certificates of conformance and material test reports are available for regulated industries.
Factory-direct supply. As a manufacturer, Glorex controls the entire production chain—from raw material sourcing to final inspection. This means competitive pricing, short lead times, and the ability to accommodate custom specifications without middleman markup.
Hose Mounting Clamps Package
About Glorex
Mika (Tianjin) Pipeline Technology Co., Ltd operates from Tianjin, one of China's four direct-controlled municipalities and a designated international integrated transportation hub. The city's position as a strategic node on the Maritime Silk Road and the Belt and Road Initiative gives the company a logistics advantage for both domestic distribution and export shipments.
The company specializes in pipe clamp products engineered for reliable, non-leakage sealing. The product range serves automotive, military, air intake, engine exhaust, cooling and heating, irrigation, and industrial drainage applications. With nearly 100 employees, the organization includes 15 pre-sales and after-sales specialists and 8 technical staff members—5 of whom hold senior engineering titles. This structure keeps technical support accessible throughout the customer relationship, from initial specification through post-installation service.
The company culture emphasizes a pragmatic, upward-oriented approach: solve the customer's problem, document what works, and improve continuously.
Certificate
FAQS
A: A worm-gear clamp uses a screw mechanism that creates a localized pressure point and a stepped band profile. A single ear stepless clamp uses a deformable ear to tension a smooth, continuous band. The result is uniform 360° compression, no steps to catch on the hose, and no screw to loosen under vibration.
A: Single ear clamps are designed for one-time installation. The ear deforms plastically during closing, so removing and reinstalling the same clamp compromises the seal. For serviceable connections, consider our worm-gear or T-bolt clamp lines.
A: A standard single ear clamp pincer works for low-volume installation. For production volumes, pneumatic or electric closing tools are available that speed up the process and ensure consistent ear deformation. We can recommend tooling based on your volume and application.
A: 300 series stainless steel offers good corrosion resistance in fresh water and moderate salt exposure. For extended immersion or heavy salt spray, we recommend 316-grade stainless. Contact us for material selection guidance.
A: The 300 series stainless steel band maintains its mechanical properties up to approximately 400°C (750°F), but the practical limit depends on the hose material being clamped. Silicone hoses, for example, typically max out around 200°C. The clamp's thermal compensation ear helps maintain seal integrity through temperature cycles within the hose's rating.
A: Yes. We can produce custom clamping ranges, band widths, and ear geometries for specific applications. Laser marking for part numbers or brand identification is available on volume orders. Minimum order quantities apply—contact our sales team for details.
A: Measure the hose's outer diameter after it is fitted over the connection nipple. Select a clamp whose clamping range brackets that measurement, ideally positioning the hose OD near the middle of the range. This leaves room for thermal expansion and ensures optimal ear deformation. Our technical team can review your application if you're unsure.
