A volumetric weight machine is a dimensioning device designed to measure the dimensions like length, width, height and actual weight of an item to calculate its volumetric or dimensional weight automatically.
This calculated volumetric weight is used by shipping carriers to determine shipping charges, particularly when the size of a package or parcel takes up more space than its actual mass would suggest.
These volumetric weight machines use computer vision-based cameras to scan the object’s length, width, and height. When combined with an integrated scale, the system can produce both actual and dimensional weight data in real time.
Why does volumetric weight matter in shipping and warehouse process?
Volumetric weight ensures that shipping costs reflect the space a parcel occupies, not just its mass.
Here’s why volumetric weighing machines are important:
- Accurate Shipping Bills: Carriers charge based on dimensional weight. These volumetric weight machines ensure accurate billing for all parcels or objects that are being measured.
- Faster Parcel Processing: Measuring and weighing a parcel manually using a tape measure is time consuming and labor intensive. Automation reduces that to seconds.
- Manual Error Reduction: Manual entry leads to frequent errors. An automated volumetric weighing system eliminates those labor errors.
- Warehouse Space Optimization: With precise dim data, companies improve warehouse rack and aisle space allocation and optimize truck utilization.
Difference between Dimensional Weight vs. Actual Weight?
Actual Weight: The physical mass measured in kilograms or pounds.
Dimensional Weight: An amount of space a parcel occupies. It uses a DIM factor (e.g., 5000 cm³/kg or 139 in³/lb) provided by the carrier.
Billable Parcel Weight: The higher of the two is used for shipping charges.
Example:
Dimensions: 20 × 16 × 12 inches
Actual Weight: 25 lbs
DIM Divisor: 139
DIM Weight = (20 × 16 × 12) / 139 = 27.6 lbs
Rounded up DIM Weight = 28 lbs
Billable weight = 28 lbs (higher than actual weight)
How does a volumetric weighing machine work?
The vMeasure volumetric weighing system uses computer vision cameras with depth sensors to instantly capture the dimensions and volume of parcels and packages in under a second. It then transfers the dimensional data to integrated WMS, TMS, ERP, and other shipping software systems.
Using a vMeasure volumetric weighing machine is as simple as this:
- Parcel Placement: A parcel is placed on the volumetric weighing machine, conveyor belt, or mobile cart.
- Dimension Capture: Computer vision-based cameras capture the parcel’s external length, width, and height.
- Weight measurement: When integrated with a scale, the system captures the parcel’s actual weight within the same workflow.
- Instant Volumetric weight Calculation: Dimensional Weight Formula = (Length x Width x Height) / DIM Factor
- Data Output: The volumetric weighing system pushes both weight values to WMS, TMS, or carrier software for processing.
Can volumetric weight machines measure irregular, non-box items like polybags or tubes?
Yes. Modern volumetric weight machines are designed to handle more than just standard cartons. While traditional laser- or sensor-based systems struggled with irregular shapes, today’s computer vision-based volumetric weighing systems can accurately capture the dimensions of polybags, tubes, pouches, and oddly shaped products.
For items that don’t have sharp edges, the system uses contour detection to measure the longest points across length, width, and height. This ensures carriers receive consistent and acceptable dimensional data, even for soft or unevenly packed parcels.
In high-volume eCommerce and 3PL environments, this capability is especially important because a significant percentage of parcels are shipped in mailer bags, cylindrical tubes, or irregular packaging. By using a volumetric weight machine with computer vision technology, businesses reduce manual rework, avoid mis-declared shipments, and stay compliant with carrier billing standards.
Where and how are these volumetric weight machines installed?
Volumetric weight machines are designed to fit into real warehouse workflows. They come in several types based on their mounting feasibility, including:
- Tabletop units: Best for pack stations in e-commerce operations
- Floor-mounted systems: Suitable for inbound/outbound areas with limited space
- Conveyor-integrated scanners: Built for high-speed operations handling thousands of parcels per hour
- Mobile-cart systems: Battery-powered, movable, ideal for dock-side audits or returns inspection
vMeasure volumetric weighing system handles items as small as 2x2x2 inches to as large as 53.1 – 41.3 – 33.5 inches, allowing for a wide variety of parcel types without needing different setups.
Who needs volumetric weight machines?
Volumetric weight machines are critical to any shipping process where dimensions serve as the first point of data. These volumetric weighing systems support accuracy, cost control, and speed, which directly impacts multiple roles and departments.
Warehouse Managers
Responsible for maintaining operational throughput and inventory accuracy, warehouse managers use volumetric weight machines to reduce manual measurement tasks, streamline packing workflows, and improve staging accuracy for outbound freight.
Fulfillment Center Operators
For high-volume e-commerce or omni-channel environments, fulfillment teams need to move thousands of packages per day without bottlenecks. Volumetric weighing systems ensure labels are generated accurately, eliminating billing errors and returns caused by incorrect dimensions. They also support carton box selection to reduce void fill and packing material costs.
Freight Forwarders and Carriers
Forwarders handling consolidation and cross-border shipments rely on a volumetric weighing system to stay compliant with carrier billing rules and ensure proper load planning.
3PLs
3PLs or third party logistics operate on slim margins and need defensible, auditable data when billing clients. Volumetric weight machines give them irrefutable proof of shipment dimensions along with images, helping them avoid undercharging and managing SLA compliance.
E-commerce Retailers
Direct-to-consumer brands and online sellers use volumetric weight machines to optimize fulfillment efficiency and prevent unexpected shipping charges that eat into margins. These volumetric weighing systems are especially critical when dealing with lightweight SKUs in oversized packaging, a common scenario in fashion, beauty, and electronics categories.
How to choose the right or best volumetric weight machine?
Selecting the right volumetric weighing system depends on your operation’s scale, layout, and software setup. Focus on these five factors:
- Volume throughput: Match the volumetric weight machine’s processing speed to your peak parcel volume. Choose tabletop units for lower volumes and conveyor models for high-throughput operations.
- Object Type: Choose systems that handle your typical item mix like boxed, cuboids, polybags, irregular, or soft-packed items
- Space Availability: Identify whether a floor-mounted, compact, or mobile volumetric weighing machine fits your layout constraints.
- Accuracy and certification requirements: Confirm the system captures accurate dimensions and is NTEP-certified for billing, so measurements meet legal-for-trade standards and support carrier billing requirements.
- Data Integration Needs: Ensure the system integrates with your WMS, TMS, ERP, or label-generation software for real-time data transfer.
If you’re still using tape measures and guesswork or relying only on weight, you’re leaving money on the table.
A volumetric weight machine helps you measure what matters. Faster processing, fewer disputes, and real control over shipping costs, all from one compact system.
Frequently Asked Questions
1. How much does a volumetric weighing machine cost?
The cost of a volumetric weighing machine varies based on its measurement range, accuracy, and automation level. Entry-level models typically range from $2,200 to $2,860, while advanced pallet or conveyor-based systems are priced higher to support industrial throughput.
2. What is the best volumetric weighing machine for warehouses?
The best volumetric weighing machine, such as vMeasure, is one that aligns with your operational volume and integrates seamlessly with existing WMS or ERP systems. Look for solutions that offer instant barcode scanning, API integration, and proven measurement accuracy.
3. How is a volumetric weighing machine different from a standard weighing scale?
A volumetric weighing machine captures both size and weight to calculate dimensional weight, whereas a standard scale measures only mass. This ensures that shipping charges reflect the actual space a parcel occupies.
4. What is a volumetric weighing system?
A volumetric weighing system in logistics, also called a dimensioning scale or volumetric dimensioner, uses computer vision cameras or sensors to capture a package’s length, width, and height. When integrated with a scale, it also captures the package’s actual weight. The system calculates dimensional weight by dividing the package volume by the carrier’s DIM divisor and helps determine the billable shipping weight.