Yamato M Series Mechanical Portion Control Scales

The M Series is a durable mechanical portion control scale designed for commercial kitchens, food processing, grocery, and industrial environments that require reliable, power-free weighing. Built with enameled steel construction and a stainless-steel platform, the M Series delivers consistent accuracy with easy visual weight readings.

It features an easy-to-read 30° tilted dial, fine-point indicator for precision, and a zero-setting mechanism for quick calibration. Multiple capacity and platform size options make the M Series suitable for both standard and heavy-duty weighing applications.

Key Features

Enameled steel construction
Easy-to-read 30° tilted dial
Fine-point indicator for accurate readings
Zero-setting mechanism
Stainless-steel square platform
No power required
Standard weight capacities from 32oz to 40lb
Heavy-duty weight capacities available from 50lb to 150lb
NSF certified
Optional carrying handle
Optional spider and bowl assembly

Model Variants and Capacities

M-24 / M-24PK
32oz x 1/4oz
Optional dual scale: 900g x 2g

M-28 / M-28PK
32oz x 1/8oz
Optional dual scale: 900g x 2g

M-5 / M-5PK
5lb x 1/2oz
Optional dual scale: 2kg x 10g

M-10 / M-10PK
10lb x 1oz
Optional dual scale: 4kg x 20g

M-20 / M-20PK
20lb x 1oz
Optional dual scale: 9kg x 50g

M-25D / M-25PK
25lb x 0.1lb
Optional dual scale: 11kg x 50g

M-30PK
30lb x 2oz
Optional dual scale: 13.5kg x 50g

M-40 / M-40PK
40lb x 2oz
Optional dual scale: 18kg x 50g

Heavy-Duty Models
M-50: 50lb x 2oz
M-74PK: 70lb x 4oz and 30kg x 100g
M-75PK: 75lb x 4oz and 33.5kg x 100g
M-100PK: 100lb x 4oz and 45kg x 100g
M-150PK: 150lb x 8oz and 67kg x 200g

Technical Specifications

Weighing System
Temperature compensated spring mechanism

Platform
Standard models: 7.5in x 7.5in (191mm x 191mm) stainless steel, removable
Large models: 9.75in x 9.75in (248mm x 248mm) stainless steel
Extra large models: 12in x 12in (305mm x 305mm) stainless steel

Dial Size
8in (203mm)
9in (229mm)
10in (254mm) depending on model

Housing Material
Enameled steel construction

Operating Temperature
14°F to 104°F (-10°C to 40°C)

Functions
Basic weighing
Portion control
Checkweighing
Batching

Options
Air dashpot
Carrying handle
2.5qt (10in) stainless-steel flat bowl
4.2qt (11in) stainless-steel bowl
2.5qt (10in) flat bowl with spider