Product Overview

The KR‑220 series key‑button fatigue life tester is specialized reliability‑testing equipment for simulating long‑term repeated pressing actions of electronic switches and keypads. It assesses durability and service lifetime for push‑button switches, computer keyboard keys, silicone‑rubber keypads, metal dome shrapnel keys and other similar button‑type components.

Equipped with programmable logic control modules, the unit monitors the complete cyclic‑pressing test workflow automatically. Multiple‑station configurations are available to run parallel sample evaluations, which greatly boosts lab‑testing throughput. This bench‑top tester is widely deployed within consumer‑electronics manufacturers, household‑appliance R&D workshops, component‑supplier QC departments and third‑party electronic‑product‑validation laboratories.

Core Product Competitive Advantages

1. Multiple‑Station Modular Design Three variants are offered: single‑station KR‑220A, three‑station KR‑220B and five‑station KR‑220C. Each working channel can run independently with separate parameter settings, so different‑specimen batches can be tested simultaneously without interfering with each other.
2. Freely Adjustable Test Parameters Users configure pressing speed, reciprocating stroke and target cycle count via the control panel. Speed range covers 0‑300 strokes per minute; maximum test stroke reaches 60 mm. The built‑in high‑capacity counter supports up to 999 999 999 cycles and will trigger auto‑stop once the preset cycle value is achieved.
3. Intuitive Human‑Machine Control Interface Touch‑screen / physical‑button control options are selectable according to model. Real‑time display shows running‑cycle numbers, operating speed and test status. Emergency‑stop button is fitted on front panel for instant halt during abnormal conditions.
4. Flexible Sample‑Mounting Mechanism Precision adjustable sample platform accommodates buttons, keypads and switch assemblies of diverse dimensions. Manual hand‑wheel fine‑tuning simplifies height adjustment for pressing probes, allowing quick fixture setup for different test‑piece geometries.
5. Stable Mechanical Drive Assembly Optimized motor‑driven reciprocating‑pressing structure delivers consistent vertical striking motion. The mechanism reduces deviation in pressing trajectory, securing good repeatability for fatigue‑life test outcomes for long‑duration continuous‑run tasks.

Complete Technical Parameter Table

表格

Standard Complete Test Operating Workflow

1. Pre‑Test Preparation & Parameter Setting Place the tester on level workbench. Secure target button / keypad specimen onto the adjustable sample platform. Adjust probe height with hand‑wheel to get proper pressing clearance. Power‑on unit and set test speed, stroke and target cycle number on control interface.
2. Trial‑Run Inspection Execute short‑cycle trial operation, verify vertical pressing position, confirm there is no offset or abnormal mechanical noise.
3. Formal Fatigue‑Life Test Start automatic test sequence. Each station performs repeated vertical pressing cycles independently. The system keeps real‑time count of completed strokes. Machine will stop automatically upon reaching preset cycle threshold.
4. Post‑Test Sample Evaluation After test completion, inspect test‑pieces for button jamming, poor contact, spring‑shrapnel fatigue, key‑collapse and other failure modes, record failure‑cycle data.
5. Equipment Shutdown & Tidying Reset probe to home‑position, remove tested samples, clean work‑platform surface. Cut off main power supply when all test batches are finished.

Wide Industrial Application Scenarios

Consumer‑Electronics Manufacturing Plants

Durability validation for mobile‑phone keys, remote‑controller buttons, membrane keypads and computer‑keyboard switches; incoming‑component quality‑control and new‑product‑reliability verification.

Household‑Appliance Factories

Fatigue‑life testing for control‑panel push‑buttons of ovens, washing‑machines and small kitchen‑appliances.

Electronic‑Component Suppliers

Performance screening for metal‑dome shrapnel, silicone‑rubber keypads and tact‑switch finished‑goods before factory delivery.

Automotive‑Electronics Workshops

Life‑cycle assessment for interior control‑panel buttons and vehicle‑mounted operating switches.

University & R&D Laboratories

Reliability research for new‑developed switch‑key structural‑solutions.

Third‑Party Electronic‑Product‑Testing‑Organizations

Conduct standard‑compliant button‑fatigue evaluation and produce formal reliability‑test‑records for product‑certification audits.

Standard Factory‑Full‑Delivery Kit

1. KR‑220 series key‑button fatigue‑life‑tester main‑unit (select A/B/C station‑count variant)
2. Adjustable sample‑holding platform and pressing‑probe assemblies
3. Machine leveling foot pads
4. Multilingual printed‑operation‑manual
5. Factory‑issued performance‑inspection certificate

Global Distributor & After‑Sales‑Support

We provide remote‑operational guidance for parameter configuration, probe‑height adjustment and routine equipment maintenance. Spare‑parts stock includes drive‑motors, pressing‑probe accessories and control‑panel components. Bulk‑order customers can request custom‑stroke and custom‑station‑count variants. Regional‑exclusive‑agent privileges contain priority‑production‑scheduling, OEM private‑branding‑services and complete‑set high‑definition‑product‑marketing‑image‑resources.

Product‑Banner‑Marketing‑Slogan

KR‑220 Series Key & Button Fatigue‑Life Tester | Multi‑Station Reliability‑Test For Switch‑Keypad‑Button Cyclic‑Pressing Durability Assessment

Core‑Feature‑Labels‑For‑Product‑Images

1/3/5‑Station Optional | Programmable Cycle Counter | 0‑300Times/Min Adjustable Speed | Max 60 mm Pressing Stroke | Independent‑Channel Control | Emergency‑Stop Safety‑Protection | Bench‑Top Compact Layout

Safety‑Operation‑Reminder

Keep fingers away from moving pressing‑probe zone during automatic test cycles. Do not adjust hand‑wheel while machine is running.