Technical Specifications

The AF07 is a Velcro fatigue tester from AVENO, built to cycle hook and loop fasteners through repeated stripping and peeling under controlled load. After the set number of cycles, the specimen is removed and tested on a tensile strength tester such as the AF01 to measure the remaining adhesion and bonding strength. The machine uses two rollers—an upper roller at 162.5 mm diameter and a lower roller at 160 mm—with a 70 mm roller width. Rolling speed is adjustable from 0 to 100 rpm, and the reversal interval is 30 ±5 seconds. The specifications below cover the standard unit.

Model/Part Number: AF07

Test Performance

• Test principle: repeated stripping and peeling of hook and loop fasteners under controlled load

• Upper roller diameter: 162.5 mm ±0.5 mm

• Lower roller diameter: 160 mm ±0.5 mm

• Roller width: 70 mm

• Rolling speed: 0–100 rpm, adjustable

• Reversal time: 30 ±5 s

• Load: 1 ±0.1 N/mm

• Post-test evaluation: adhesion and bonding strength measured on a tensile strength tester (e.g. AF01)

Standards Met

• GB/T 3903.20

• GB/T 3903.21

• GB/T 23315

• ISO 22777

• ISO 22776

• DIN 3415

• SATRA TM123

Physical and Electrical

• Power supply: AC 220 V, 50/60 Hz

• Dimensions (W x D x H): 450 x 540 x 550 mm

• Weight: 75 kg

Certification

• CE

• ISO 9001

• ISO 17025

Standard Accessories Included:

• AF07 Velcro fatigue tester base unit

• Power cable

• Operating manual

• Calibration certificate

Items Excluded:

• AF01 tensile strength tester for post-cycle adhesion and bonding strength measurement

• Additional test rollers

• Specimen preparation tools

• Extended warranty beyond standard terms

Pre-installation Requirement:
Place the tester on a rigid, level bench with clearance around the rollers for specimen loading and removal. Confirm the bench can carry the 75 kg unit weight plus fixtures. Connect to a grounded AC 220 V, 50/60 Hz supply. Allow the unit to reach ambient temperature before first use if stored in a colder environment. Confirm the roller diameters and load setting match the standard your test method cites before the first run.

---

Why This Velcro Fatigue Tester Belongs in a Textile or Footwear Lab

Hook and loop fasteners are simple in use and difficult to qualify. A closure that holds on day one can lose grip after a few hundred open-close cycles, and the loss is not visible until the product fails in the field. The AF07 Velcro fatigue tester standardizes that cycling: it strips and peels the fastener repeatedly at a set load and speed, then you measure the remaining adhesion and bonding strength on a tensile tester. The result is a number you can compare across suppliers, batches, and design revisions.

The machine covers the standards that footwear, apparel, and textile labs actually cite: GB/T 3903.20, GB/T 3903.21, GB/T 23315, ISO 22777, ISO 22776, DIN 3415, and SATRA TM123. Load is held at 1 ±0.1 N/mm, roller diameters match the specified 162.5 mm and 160 mm, and speed is adjustable from 0 to 100 rpm. The reversal interval of 30 ±5 seconds matches the standard cycling pattern.

For buyers sourcing through OS4U, the configuration question is mostly whether the AF01 tensile strength tester belongs in the same order, since the fatigue tester produces the cycled specimen and the tensile tester produces the strength result. The AVENO AF07 product page lists the related equipment.

---

Key Benefits

Standards coverage across GB, ISO, DIN, and SATRA

The AF07 hook and loop fatigue tester meets GB/T 3903.20, GB/T 3903.21, GB/T 23315, ISO 22777, ISO 22776, DIN 3415, and SATRA TM123. A single machine covers the test methods used across footwear, apparel, and textile supply chains.

Adjustable speed with a fixed reversal interval

Rolling speed is adjustable from 0 to 100 rpm, so cycle duration can be tuned to the method. The reversal time of 30 ±5 seconds matches the standard cycling pattern, and the load is held at 1 ±0.1 N/mm.

Roller dimensions that match the specification

Upper roller at 162.5 ±0.5 mm and lower roller at 160 ±0.5 mm, both with 70 mm width. These are the dimensions the cited standards call for, so the test setup does not need adjustment to match the method.

Fatigue data that supports supplier comparison

Repeated stripping and peeling under controlled load produces a cycled specimen. Testing that specimen on a tensile strength tester gives a remaining adhesion and bonding strength value, which lets you compare suppliers and batches on the same basis.

Compact footprint for a textile test bench

At 450 x 540 x 550 mm and 75 kg, the unit fits on a standard test bench without a dedicated floor space. Power is a single-phase AC 220 V, 50/60 Hz connection.

Certification that supports quality system use

CE, ISO 9001, and ISO 17025 certification support use in a lab that operates under a quality management system or seeks accreditation for the test method.

---

Solving the Problems That Slow Fastener Testing Down

Struggling to predict field failure of hook and loop closures? The AF07 cycles the fastener through repeated stripping and peeling at a set load. The remaining adhesion measured after cycling predicts how the closure will perform in use.

Needing to test to multiple standards on one machine? GB/T 3903.20 and 3903.21, GB/T 23315, ISO 22777 and 22776, DIN 3415, and SATRA TM123 are all covered. One machine supports the methods used across footwear, apparel, and textile supply chains.

Getting inconsistent cycle counts between operators? Speed is set from 0 to 100 rpm, load is held at 1 ±0.1 N/mm, and the reversal interval is 30 ±5 seconds. The cycling parameters do not depend on operator technique.

Comparing suppliers on the same basis? Cycled specimens tested on a tensile strength tester give a remaining strength value. That value can be compared across suppliers and batches because the fatigue conditions are standardized.

Worried about lab space? The unit measures 450 x 540 x 550 mm and weighs 75 kg. It fits on a standard test bench with a single-phase power connection.

Needing certification for quality system use? CE, ISO 9001, and ISO 17025 certification support use in a quality-managed or accredited lab.

---

Warranty & Support

We provide a 1-year manufacturer’s warranty covering parts and labor. Technical support, installation assistance, and operational training are also available. Replacement parts and consumables are available throughout the product’s service life.

Request a Quotation or Technical Datasheet

Contact us for more information, customized configurations, and solutions tailored to your specific requirements.