Repeated Tumble Drop Testing for Smartphones & Portable Electronics
The ITM-LAB RS-DP-12A Automatic Tumble Tester is designed for repeated free-fall and tumble impact testing of smartphones, tablets, earphones, wearable devices, remote controllers and other small portable electronic products.
Through continuous drum rotation, the specimen is repeatedly lifted, released and impacted against a defined striking surface. This allows reliability engineers to evaluate housing durability, structural integrity, internal component retention and functional performance after repeated mechanical impacts.
500 / 1000 mm Drop Height | 1–20 Drops/min | PLC Control | 1–999,999 Cycles
Applicable Test Methods: IEC 60068-2-32 · GB/T 2423.8 · YD/T 1539-2019
[ REQUEST A QUOTE ] [ WATCH TEST VIDEO ]
Quick Specifications
Parameter RS-DP-12A Test Method Repeated tumble / free-fall impact Drop Height 500 mm / 1000 mm Test Speed 1–20 drops/min Typical Speed 10 drops/min Test Counter 1–999,999 cycles Control Touchscreen + PLC Drum Configuration Dual tumble structure Impact Surface 17–19 mm wood backing + 3 mm steel plate Applications Smartphones, tablets, earphones, wearables & small electronics Applicable Test Methods IEC 60068-2-32 · GB/T 2423.8 · YD/T 1539-2019 Customization Drop height, drum structure and dimensions available Need help confirming the configuration?
Send us your specimen size, weight, required drop height and test standard.Typical Applications
The RS-DP-12A is designed primarily for small and portable electronic products that may experience repeated accidental impacts during handling and daily use.
MOBILE DEVICES PERSONAL ELECTRONICS SMALL ELECTRONICS Smartphone Earphones Remote Controller Tablet Smart Watch Connector E-Reader Headset Small Assembly
Key Engineering Features
Feature Specification Engineering Benefit Dual-Height Tumble Testing 500 mm / 1000 mm Drop Height Supports different impact levels according to specimen requirements and test procedures Adjustable Tumble Speed 1–20 Drops/min Flexible control for different reliability testing conditions Programmable Cycle Control 1–999,999 Cycles Automatic cycle counting with touchscreen start/stop control Controlled Inspection Stop & Continue Function Allows specimen inspection during testing without restarting the complete program Defined Impact Surface 3 mm Steel Plate + 17–19 mm Wood Backing Provides stable and repeatable impact conditions Safety Enclosed Structure Door Interlock + Emergency Stop Protects operators and ensures safe test operation ![]()
How Does the RS-DP-12A Work?
Tumble testing creates repeated free-fall impacts through continuous drum rotation.
The operating principle is straightforward:
01 — LOAD
Place the specimen inside the tumble chamber.
↓
02 — SET
Set the required test speed and cycle count through the touchscreen.
↓
03 — ROTATE
The drum rotates and lifts the specimen.
↓
04 — FREE FALL
The specimen is released and falls onto the defined impact surface.
↓
05 — REPEAT
The lift-drop-impact sequence continues automatically.
↓
06 — INSPECT
After the required number of cycles, inspect the specimen for mechanical and functional failures.
What Does Tumble Testing Reveal?
A product may survive one controlled drop but develop problems after dozens or hundreds of repeated impacts.
The RS-DP-12A helps engineers investigate three main levels of failure.
Exterior Damage
- Housing cracks
- Surface damage
- Frame deformation
- Enclosure separation
- Broken external components
Internal Assembly Damage
- Loose components
- Connector displacement
- Battery movement
- Fastener loosening
- Component detachment
Functional Failure
- Display malfunction
- Button failure
- Intermittent electrical connection
- Charging connection failure
- Communication interruption
Technical Specifications
Parameter Specification Model RS-DP-12A Test Type Automatic repeated tumble / free-fall test Drum Configuration Dual tumble structure Drop Height 500 mm / 1000 mm Test Speed 1–20 drops/min Typical Test Speed Approx. 10 drops/min Test Counter 1–999,999 cycles Control Mode Touchscreen + PLC Drum Material Stainless-steel configuration available Impact Surface 17–19 mm wood backing + 3 mm steel plate Observation / Access Drum access structure Safety Protection Door interlock + emergency stop Specimen Capacity Confirm according to configuration Drum Dimensions Confirm according to configuration Machine Weight Approx. 245–250 kg depending on configuration Power Supply AC 220 V / configuration dependent Customization Drum size, drop height and configuration available Tumble Tester vs. Controlled Drop Tester
These two machines perform different reliability evaluations.
Test Requirement Tumble Tester Controlled Drop Tester Repeated impacts ✓ — High cycle testing ✓ — Variable impact orientation ✓ — Defined face impact — ✓ Defined edge impact — ✓ Defined corner impact — ✓ Accumulated durability evaluation ✓ — Orientation-specific failure analysis — ✓ Choose a Tumble Tester When:
You need to determine how a product performs after repeated mechanical impacts.
Choose a Controlled Drop Tester When:
You need to determine what happens when a specific face, edge or corner hits the impact surface.
For smartphone reliability programs, the two test methods can complement each other rather than replace one another.
Testing Standards
The RS-DP-12A can be configured for tumble and free-fall testing based on commonly referenced mechanical impact test methods.
Standard Description Typical Application IEC 60068-2-32 Environmental testing — free-fall test methods for evaluating mechanical effects caused by dropping and handling. Portable electronic products, components and assemblies GB/T 2423.8 Free-fall environmental testing method for electrical and electronic products. Electronic equipment reliability evaluation YD/T 1539-2019 Reliability technical requirements and test methods for mobile telecommunication handsets. Mobile phones and communication devices How to Select the Right Configuration
Before requesting a quotation, five pieces of information are particularly important.
01 — Specimen
What product are you testing?
Smartphone, tablet, earphone, wearable, remote controller or another electronic product?
02 — Size & Weight
Provide the specimen dimensions and maximum test weight.
03 — Drop Height
Confirm whether the test requires:
500 mm / 1000 mm / Customized
04 — Test Conditions
Confirm:
- Drop frequency
- Required cycles
- Number of specimens
- Any special impact requirements
05 — Standard
Provide the applicable IEC, GB/T, YD/T or internal company test specification.
Configure the RS-DP-12A for Your Test
Not sure which tumble tester configuration you need?
Send ITM-LAB:
Product / Specimen
Dimensions
Weight
Required Drop Height
Test Standard
Our engineers can evaluate the test requirement and recommend an appropriate RS-DP-12A configuration.
[ REQUEST A QUOTE ]
[ CONTACT ITM-LAB ]
[ WATCH TEST VIDEO ]
What is a tumble tester used for?
A tumble tester is used to simulate repeated accidental drops and evaluate the mechanical durability and functional reliability of portable electronic products.
What products can be tested with RS-DP-12A?
The RS-DP-12A is suitable for smartphones, tablets, wearable devices, Bluetooth products, communication equipment, and other portable electronics.
Why does the RS-DP-12A use an AC servo motor?
The AC servo motor provides accurate position control, allowing engineers to stop the tumble chamber at a specific angle for inspection and failure analysis.
Can RS-DP-12A test multiple products?
Yes. The dual-drum structure allows batch testing of multiple small electronic products within the specified payload capacity.
What safety features are included?
The system includes an electronic door interlock, automatic motor shutdown, and emergency stop protection.
