Product inspection and checkweighing usually starts with one question: does your line need only metal detection, or does it need weight verification in the same pass? The four used conveyor systems compared here cover both sides. Listed prices span from USD 1,500.00 to USD 18,999.00.
Quick take
The Mettler Toledo Safeline Metal Detector & Checkweigher Combo Conveyor System is the only listed option that combines a checkweigher with a metal detector. The Safeline SL1500 is the higher-priced standalone metal detection conveyor with pneumatic reject. The ADS ProScan Max II offers a washdown food-service setup for under USD 4,500. The Tablex PH-2 is the least expensive entry point but is described only as powering on, with no further testing done.
Listed price comparison
| Product | Listed price | Price bar | What you get |
|---|---|---|---|
| Safeline metal detector model SL1500, stainless conveyor, pneumatic reject | USD 18,999.00 | 12-inch belt on a 6-foot stainless conveyor, pneumatic reject, 110V | |
| Mettler Toledo Safeline Metal Detector & Checkweigher Combo Conveyor System | USD 15,000.00 | Checkweigher and metal detector combo with dual push-bar reject | |
| ADS ProScan Max II Digital METAL DETECTOR Washdown Conveyor System Food Service | USD 4,499.99 | Washdown conveyor system, auto-learn, three test samples | |
| Mettler Toledo Safeline Tablex PH-2 Metal Detector and Conveyor | USD 1,500.00 | Metal detector and conveyor at the lowest listed price |
Decision matrix
| Need | Candidate | Listed price | Why it fits |
|---|---|---|---|
| Integrated weight and metal detection | Mettler Toledo Safeline Metal Detector & Checkweigher Combo Conveyor System | USD 15,000.00 | Combines checkweigher and metal detector with dual push-bar rejects |
| Standalone metal detection with automatic reject | Safeline metal detector model SL1500, stainless conveyor, pneumatic reject | USD 18,999.00 | Pneumatic reject, 110V, variable speed drive, clear aperture spec |
| Washdown food-service conveyor | ADS ProScan Max II Digital METAL DETECTOR Washdown Conveyor System Food Service | USD 4,499.99 | Waterproof feature note, food production use, auto-learn |
| Low listed price with unverified operation | Mettler Toledo Safeline Tablex PH-2 Metal Detector and Conveyor | USD 1,500.00 | Lowest listed price; listing says it powers on but was not tested further |
Product notes
Safeline metal detector model SL1500, stainless conveyor, pneumatic reject
This is the highest listed price in the group at USD 18,999.00. It pairs a Safeline SL1500 detector with a 12-inch-wide belt on a 6-foot stainless conveyor and a pneumatic reject cylinder. The listing states an aperture of 10-3/4 inches tall by 13-3/4 inches wide, a 110V power requirement, and a variable speed drive. Detection levels are listed as 1.5mm ferrous, 1.5mm non-ferrous, and 2.0mm stainless steel. Choose it when you want a conveyorized metal detector with automatic air rejection and a stainless construction on locking casters. The trade-off is price: it is the most expensive of the four, and the listing is positioned as an industrial automation metal detector rather than a combo inspection system.
Mettler Toledo Safeline Metal Detector & Checkweigher Combo Conveyor System
At USD 15,000.00, this is the only system in the comparison that combines a checkweigher and a metal detector in one conveyor. The listing identifies it as a Mettler Toledo Hi-Speed V4-RAD Checkweigher and Metal Detector Conveyor System, with touchscreen HMI controls, dual push-bar reject stations, and stainless construction. It was previously used for 6 oz and 15 oz containers. Spec details include a 32-inch infeed/discharge height, 2.5-inch conveyor width, an effective aperture of 10.5 inches high by 7.75 inches wide, and 480V three-phase power. Choose it when weight verification and metal detection need to happen in the same path. The limitation is that the 480V electrical requirement is more demanding than the 110V/115V setups listed here.
Mettler Toledo Safeline Tablex PH-2 Metal Detector and Conveyor
The Tablex PH-2 is the lowest listed price in this group at USD 1,500.00. It is a used Mettler Toledo Safeline detector with conveyor, identified as model 4500922R and MPN 4500-922R, with a United States country of origin. The listing says it was recently removed from a local lab, powers on, and is believed to be working, but the seller could not test it further. For a shopper comfortable with an unverified unit, this is the low-cost way into a Safeline metal detector and conveyor. The limitation is the lack of a confirmed operation check beyond power-on; the description also makes clear this is a metal detector listing, not a checkweigher combo.
ADS ProScan Max II Digital METAL DETECTOR Washdown Conveyor System Food Service
Priced at USD 4,499.99, the Advanced Detection Systems ProScan Max II is described as a digital metal detector with washdown conveyor system for food service. The setup is roughly 64 inches wide and 32 inches front to back, with a 12-inch-wide by 3-3/4-inch-tall opening above the belt. It runs on standard 115V plugs, includes an auto-learn feature, supports pre-programmed settings for different items, and comes with a set of three test samples for ferrous, non-ferrous, and stainless metal. The attribute list marks it as Waterproof with an Intended Use of Food Production. Choose it if washdown capability and test samples matter at a mid-range listed price. The limiting dimension is the 3-3/4-inch aperture height above the conveyor belt, which restricts taller products.
Final recommendation by use case
- If your line needs both weight check and metal detection in a single conveyor, evaluate the Mettler Toledo Safeline Metal Detector & Checkweigher Combo Conveyor System at USD 15,000.00. It is the only listing here with a checkweigher.
- If metal detection alone is enough and automatic reject matters, the Safeline SL1500 with stainless conveyor and pneumatic reject gives you a 110V conveyorized system and a stated aperture, at USD 18,999.00.
- If the inspection line is food-service washdown and products fit under a 3-3/4-inch opening, the ADS ProScan Max II at USD 4,499.99 is the practical mid-range pick.
- If you want the lowest listed price and can accept an unverified unit, the Mettler Toledo Safeline Tablex PH-2 at USD 1,500.00 is the entry point.
The specifications worth weighing are electrical supply and product height: the units here split between 110V/115V and 480V, and aperture heights range from 3-3/4 inches up to 10-3/4 inches (with the SL1500's total aperture at 13-3/4 inches wide).
