In the highly demanding and fast-paced distribution environment, the methods used to transport large goods have evolved significantly. To optimize warehouse space and reduce the massive costs associated with wooden pallets, global logistics networks increasingly rely on pallet-less handling. Instead of traditional forklifts lifting from the bottom, warehouse operators now utilize hydraulic clamp trucks to grip the sides of a shipping unit directly.
While this method drastically improves operational efficiency, it introduces a severe lateral crushing hazard to the packaging. Unlike a standard vertical compression test which assesses top-to-bottom stacking strength, or a drop test which measures sudden kinetic impact, clamp handling applies immense, sustained horizontal pressure. If the package is not specifically designed to withstand these squeezing forces, the internal contents-such as home appliances, sensitive electronics, or bulky furniture-can be irreparably crushed.
The packaging clamp tester is meticulously designed to replicate these exact warehouse conditions. By simulating the precise forces exerted during the loading and unloading of a shipping container, this machine provides packaging engineers with the critical data needed to reduce logistics losses, comply with strict international safety standards, and ultimately optimize their packaging solutions.
| Equipment Model: | WEW-PCT-ASTM-1200D | WEW-PCT-ASTM-1500S |
| Equipment Name: | Packaging Clamp Tester | Carton Clamp Testing Machin |
| Clamping Force: | 1000KG, 1200kg Options | 1000KG, 1200kg, 1500 kg |
| Maximum Sample Weight: | 10 ~150 KGS | 10~300 KGS |
| Sensor Accuracy: | 1/20,000, measurement accuracy 1%; | 1/20,000, measurement accuracy 1%; |
| Clamping Plate Vertical: | Vertical Travel: 0~1000 mm | Vertical travel range: 0~1200 mm; |
| Clamping Arm Extension: | Retraction Range: 200~2000 mm | 200~2200 mm; clamping displacement accuracy: ±0.5 mm; |
| Clamping Test Speed: | 12.7 m/min (Adjustable); | 12.5 m/min (Adjustable); |
| Clamping Plate Dimensions: | 1200 x 1200 mm; the clamping plates are capable of performing clamping, opening, lifting, and lowering actions, as well as cyclic operations. | |
| Clamping Space: | (Max) W1200 X D1200X H1200mm | (Max) W1200 X D1200X H1200mm |
| Clamping Space: | Minimum W400X D1200 X H1200mm; | Minimum W400X D1200 X H1200mm; |
| Clamping Speed: | Adjustable from 5 to 50 mm/min; | Adjustable from 5 to 50 mm/min; |
| Vertical Travel Range: | Adjustable from 100 to 300 mm; can also be customized according to user requirements. | |
| Machine Dimensions: | 2810 X D1900 X H2500mm; | 2200 X D1900 X H2650mm; |
| Equipment Weight: | 1550 KGS | 1850 KGS |
| Power Supply: | AC 380V, AC440V, 60Hz, 3 Phase | AC 220V, AC110V, 50Hz, 1 Phase |
| Control System: | Controlled by a microcontroller, it offers ease of operation and stable performance. | |
| Force Units: | Kgf/N/Lbf | Kgf/N/Lbf |
| Force Controller: | The LCD displays the maximum breaking force, pressure-holding time, and displacement value. | |
| Automatic Stop Method: | Shutdown upon reaching upper or lower limits; | Shutdown upon reaching upper or lower limits; |
| Drive Mechanism: | Variable-frequency motor | Servo Motor |
| Safety Devices: | Earth leakage protection, Travel limit device; | Earth leakage protection, Travel limit device; |
| Clamping Plate Sensor: | Four Pieces | Four Pieces |
Precision Load Cell Integration: In strict accordance with ASTM D6055 Test Method C, measuring the exact clamp force between the platens is critical.
This machine utilizes massive 1200 x 1200 mm clamping plates embedded with highly precise sensor pieces featuring a 1/20,000 resolution. This sophisticated engineering eliminates force variations caused by camber or toe-in.
By ensuring the lateral compressive resistance of unitized loads is evaluated with an overall measurement accuracy of ±1%, it perfectly simulates the severe squeezing forces applied by hydraulic warehouse attachments.
Heavy-Duty Mechanical Drive: To accurately replicate the mechanical handling hazards of the modern distribution environment, the tester is equipped with a robust drive mechanism capable of delivering up to 1500 KG of clamping force.
With an expansive retraction range spanning from 200 mm to 2200 mm, the system executes perfectly timed cyclic operations—including dynamic clamping, controlled lifting, and sustained holding.
This guarantees that large shipping cases, such as those housing home appliances or bulky furniture, can safely endure the intense side compression mandated by ISTA and SEARS corporate logistics standards.
Advanced Digital Microcontroller: The core operations of the clamp handling test are seamlessly commanded via an intuitive digital LCD interface.
Packaging engineers can dynamically monitor real-time test data, including maximum breaking force, pressure-holding time, and exact displacement figures with an impressive ±0.5 mm positioning accuracy.
With adjustable clamping test speeds up to 12.7 meters per minute, the system ensures reliable data collection. Built-in safety protocols, such as upper/lower limit auto-shutdown and earth leakage protection, fully safeguard the laboratory environment.
Uncompromising Structural Architecture: Engineered specifically to withstand the relentless demands of continuous distribution cycle simulations, the machine’s heavy-duty frame effortlessly accommodates massive sample weights up to 300 KGS.
Whether integrated alongside a random vibration system or an environmental condition chamber, this clamp tester serves as the ultimate line of defense for your packaging designs.
It verifies the anti-extrusion properties of critical shipping units, drastically reducing transit losses and preventing internal product damage before the cargo ever leaves your manufacturing facility.
| The cornerstone of reliable clamp testing is strict adherence to international testing protocols. The American Society for Testing and Materials established ASTM D6055 (Standard Test Methods for Mechanical Handling of Unitized Loads and Large Shipping Cases and Crates) to provide a uniform methodology for evaluating these specific hazards. These test methods are exceptionally suitable for testing the integrity of unitized loads and large cases and crates, ensuring the contents can endure normal handling using standard mechanical handling equipment. | ASTM D6055: Standard Test Methods for Mechanical Handling |
| Specifically, The packaging clamp tester from Wewon Environmental Chambers Co., Ltd. is engineered to perfectly execute Test Method C – Clamp Handling Test. According to the standard, this method evaluates lifting by a hydraulic clamp attachment to determine the ability of the shipping unit to withstand squeeze clamp handling, which consists of repeated side compression and lifting operations. | |
| To ensure absolute accuracy, ASTM D6055 mandates that provisions shall be made to measure the clamp force between the platens using load cells or other suitable devices at critical locations. Our clamp tester meets and exceeds this requirement by incorporating four highly precise sensor pieces directly into the clamping plates. | |
| The ASTM D6055 standard also dictates precise positioning for single-load cell indicators based on the clamp type. For articulating clamps, the load cell must be positioned front-to-back so its centerline aligns with the pivoting axis, and top-to-bottom so it is parallel to and centered between the clamping cylinders. By adhering to these strict geometric and mechanical guidelines, our machine guarantees that the recorded forces accurately reflect the true stress applied to the packaging, eliminating variations caused by camber or toe-in. |
It is crucial to understand that mechanical handling is only one phase of the broader distribution cycle. A truly robust packaging system must survive a multifaceted gauntlet of hazards. When conducting comprehensive evaluations, engineers often utilize overarching standards such as ASTM D4169. Within the ASTM D4169 framework, the clamp handling test seamlessly integrates with other critical simulations.
For example, a complete test plan may subject the package to high-altitude vacuum conditions in an aerospace chamber, followed by random vibration on an electromagnetic shaker to simulate transit. After surviving constant vibration, the unitized load must then undergo the clamp handling test to prove it can still be safely unloaded by a forklift attachment. Only by surviving this entire sequence can a package be deemed truly roadworthy.
Furthermore, this machine is specifically designed to meet stringent corporate and organizational standards. It is especially applicable for testing the anti-clamping strength required by the SEARS corporate standard. It also fully supports the rigorous testing sequences mandated by ISTA 6-Amazon.com (SIOC) and ISTA 6-SAMSCLUB protocols for non-palletized large goods.
| The Wewon packaging clamp tester (Model WEW-PCT-ASTM Series) is a heavy-duty, highly automated testing platform built for modern industrial laboratories. Its robust architecture is capable of accommodating extremely large sample weights ranging from 10 to 150 KGS (and up to 300 KGS on customized models). | Equipment Technical Supremacy: |
| To simulate the most aggressive warehouse equipment, the machine offers massive clamping force options of 1000 KG, 1200 KG, and up to 1500 KG. Despite this immense power, the force is monitored with surgical precision. The system boasts an incredible sensor accuracy resolution of 1/20,000 and an overall measurement accuracy of 1%. This ensures that delicate thresholds are never accidentally exceeded. | Massive Clamping Force & Precision: |
| The equipment features massive 1200 x 1200 mm clamping plates. These oversized platens can execute a full range of motions including clamping, opening, lifting, and lowering, executing perfectly timed cyclic operations. The retraction range of the clamping arms spans from 200 mm to 2200 mm, allowing laboratories to test everything from narrow rectangular cartons to massive, cube-shaped appliance boxes. | Expansive Clamping Platens: |
| At the core of the system’s reliability is a state-of-the-art drive mechanism utilizing either variable-frequency motors or highly responsive servo motors. This allows for a widely adjustable clamping test speed of up to 12.7 meters per minute, with fine-tuning clamping speeds from 5 to 50 mm/min. | Advanced Drive and Control Systems: |
| The entire operation is commanded via a sophisticated microcontroller featuring a highly intuitive LCD interface. The LCD dynamically displays the maximum breaking force value, the pressure-holding time, and exact displacement figures. To protect both the operators and the machinery, the system is equipped with an automatic shutdown mechanism that triggers upon reaching upper or lower limits, alongside comprehensive earth leakage protection and travel limit safety devices. | Controller Touchscreen System: |
ASTM D6055 Compliance & Industry Application: The packaging clamp tester from Wewon Environmental Chambers Co., Ltd. is an indispensable asset across a multitude of core manufacturing and logistics sectors. Engineered specifically to execute Test Method C (Clamp Handling Test) of the ASTM D6055 Standard, its primary application is testing the anti-extrusion performance of products and their corresponding packaging. It accurately simulates the repeated side compression and lifting forces exerted by hydraulic clamp attachments on unitized loads and large shipping cases within the distribution environment.
📺 Home Appliances & Electronics
Evaluating the anti-extrusion properties of large appliance boxes and verifying the integrity of buffer packaging for precision components under simulated platen force.
🛋️ Furniture & Building Materials
Validating the compression resistance of ceramic tiles, wooden boards, and large furniture cartons during clamp truck mechanical handling in warehouses.
🥫 Food & Beverage
Assessing the transport stacking and side-compression limits of bottled, canned, and boxed consumable goods to prevent crush damage and product leakage.
📦 Packaging & Logistics
Conducting fundamental compression testing on corrugated cartons, plastic crates, and flexible packaging materials to optimize designs for unitized loads.
🧪 Chemicals & Pharma
Ensuring the safety and seal integrity of hazardous chemical packaging and critical medical supplies under immense lateral stress, preventing catastrophic distribution failures.
🚗 Automotive & Auto Parts
Simulating logistics pressure to evaluate the lateral crush resistance of automotive parts packaging and large plastic components during transit.
