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German Type Hose Clamp

German type hose clamps are non-perforated worm-drive clamps used for hose and pipe fastening in automotive, machinery, industrial equipment, and general piping applications. The smooth band helps reduce hose surface damage during tightening, while the screw and housing structure supports more even clamping around the hose.

Yueding supplies German type hose clamps in regular size ranges from 16–50 mm, with material, band width, screw type, surface finish, and packing options available according to your order requirements. If you need bulk orders, mixed sizes, or customer packaging, we can help confirm the clamping range, material grade, structure, surface treatment, and packing details before production.
Availability:

Supply Capabilities

Material Grade Band Housing Screw Suggested Install Torque
W1 Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Φ ≤ 25, Band 9 mm: 3.0 Nm Band 12 mm: 3.4 Nm Φ ≥ 27, Band 9 mm: 3.4 Nm Band 12 mm: 3.8 Nm
W2 AISI SS430 / SS200 / SS304 AISI SS430 / SS200 / SS304 Zinc Plated Steel
W4 AISI SS304 AISI SS304 AISI SS304 Φ ≤ 25, Band 9 mm: 4.0 Nm Band 12 mm: 4.9 Nm Φ ≥ 27, Band 9 mm: 4.5 Nm Band 12 mm: 4.8 Nm
W5 AISI SS316 AISI SS316 AISI SS316
German Type Hose Clamp Structure and Size Diagram
9 mm Band Width - Item No. (W1 / W2) 9 mm Band Width - Item No. (W4 / W5) 9 mm Band Width - Range (mm) Q675 9 mm Band Width - Range (mm) DIN3017 9 mm Band Width - Screw Length (mm) 12 mm Band Width - Item No. (W1 / W2) 12 mm Band Width - Item No. (W4 / W5) 12 mm Band Width - Range (mm) Q675 12 mm Band Width - Range (mm) DIN3017 12 mm Band Width - Screw Length (mm)
09B0812 09Q0812 8-12 8-12 23 / / / / /
09B1016 09Q1016 10-16 10-16 / / / / /
09B1222 09Q1222 12-22 12-22 12B1220 12Q1220 12-22 12-22 23
09B1627 09Q1627 16-27 16-27 12B1625 12Q1625 16-27 16-27
09B2032 09Q2032 23-35 20-32 12B2032 12Q2032 23-35 20-32
09B2540 09Q2540 25-40 25-40 26 12B2540 12Q2540 30-45 25-40 26
09B3250 09Q3250 32-50 30-45 / 35-50 12B3250 12Q3250 32-50 30-45 / 35-50
09B4060 09Q4060 40-60 40-60 12B4060 12Q4060 40-60 40-60
09B5070 09Q5070 50-70 50-70 12B5070 12Q5070 50-70 50-70
09B6080 09Q6080 60-80 60-80 12B6080 12Q6080 60-80 60-80
09B7090 09Q7090 70-90 70-90 12B7090 12Q7090 70-90 70-90 29
09B80100 09Q80100 80-100 80-100 12B80100 12Q80100 80-100 80-100
09B90110 09Q90110 90-110 90-110 12B90110 12Q90110 90-110 90-110
09B100120 09Q100120 100-120 100-120 12B100120 12Q100120 100-120 100-120 31
09B110130 09Q110130 110-130 110-130 12B110130 12Q110130 110-130 110-130
09B120140 09Q120140 120-140 120-140 12B120140 12Q120140 120-140 120-140
09B130150 09Q130150 130-150 130-150 12B130150 12Q130150 130-150 130-150
09B140160 09Q140160 140-160 140-160 12B140160 12Q140160 140-160 140-160

DIN Reference Structure

German type hose clamps are commonly supplied according to DIN 3017-1 reference structures. The standardized size and structure make them easier to match for OEM assembly, repair replacement, long-term purchasing, and repeated supply. For bulk orders, this also helps reduce confusion when different sizes need to be identified, replaced, or reordered later.

Band, Housing, and Screw Fit

In actual assembly, small variations in band width, band thickness, housing position, screw fit, or forming shape can affect how smoothly the clamp tightens. For German type hose clamps, we pay attention to the fit between the band, housing, and screw, because these parts directly affect tightening feel and clamping stability.

Smooth Non-Perforated Band

The smooth non-perforated band is not only an appearance feature. During tightening, rough edges, poor forming, or uneven pressure can scratch the hose surface or create local stress points. This structure is especially useful for softer rubber hoses or applications where hose surface protection is important.

Material Options and Large-Size Production Handling

Yueding can supply common material grades such as W1, W2, W4, and W5 for different corrosion resistance, strength, and cost requirements. For larger German type hose clamps, semi-automatic production with manual support may be used to match different diameter ranges and structure requirements, especially when band forming or housing assembly needs more flexible process control.

Automated Production of German Type Hose Clamp Bands

Related German-Type Hose Clamp Options

German type hose clamps can be supplied in several structure options for different installation and maintenance needs. You can choose the suitable type according to the hose structure, adjustment method, assembly frequency, and application environment.
German Hose Clamp with Handle

With Handle

Designed for applications that require frequent opening or manual adjustment. Handle versions are available in stainless steel or colored plastic options.

German Offset Clamp with Compensation

Offset Compensation

The offset structure helps compensate for hose expansion, contraction, or position deviation during tightening. It is suitable for applications where more even clamping pressure is required.

German Hose Clamp Head

Clamp Head

Clamp heads can be supplied separately for custom size production or material modification. They are compatible with standard German type hose clamp band structures.

German Bridge Hose Clamp

Bridge Type

Designed for spiral-reinforced hoses. The bridge structure helps the clamp fit over the hose spiral and tighten more evenly around the connection area.

Automatic Production Line for German Type Hose Clamps

Automated Production Backed by Factory Strength

Yueding’s factory covers over 20,000 square meters and is equipped with automated and semi-automated production facilities for German type hose clamps and related metal components. With more than 200 full-time staff, including experienced engineers and production teams, we support stable batch production, mixed-size orders, and long-term supply needs.


Our products are exported to more than 110 countries, with annual sales exceeding USD 10 million. Certified under ISO 9001, ISO 45001, IATF 16949, and RoHS, Yueding provides reliable manufacturing and quality support for automotive, industrial hose, machinery, and piping applications.

Product Questions & Answers

What is a German-style hose clamp? How does it differ from the American-style hose clamp?

Unlike the American-style hose clamp, which has a perforated steel band, the German-style hose clamp features a smooth inner band with a rolled edge. This design helps prevent damage to the hose during tightening, providing better sealing and durability.

What sizes of German-style hose clamps do you offer? Do you have options for 8mm or 12mm band widths?

What materials are typically used for German-style hose clamps?

Why is the automotive industry more inclined to use German-style hose clamps?

Does your factory support small to medium batch customization?

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About YDCT

Focused on exhaust system component manufacturing since 1992, providing stable supply of metal bellows and stainless steel clamps to global customers, supporting long-term bulk purchasing and project customization needs.

Contact Information

Address: Hengqiankou Industrial Zone, Wenzhou, Zhejiang 325600, China
WhatsApp: +86-13757770601
Email: mike@yuedingexhaust.com

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