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  5. Concrete Machinery
  6. Open the cover and the mixing stops! Mortar mixer with safety features.

Open the cover and the mixing stops! Mortar mixer with safety features.

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High-performance and safe on-site mortar mixer - Cover Link Mortar Mixer A Series

last updated:Jul 31, 2026

岡三機工
岡三機工
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Open it and the mixing stops! The A series mortar mixer comes with standard safety features.

■Equipped with an interlock mechanism that stops the mixing blades when the mixer cover is opened. Furthermore, resuming operation requires a manual restart, preventing unintended activation. *Please note that the mixing blades do not stop immediately when the cover begins to open. ■Optional mesh cover installation available! Upper inlet: By using a mesh size of 12mm or less, finger entry is restricted, and a distance of over 100mm from the mesh to the rotating parts is ensured. Side area: To reduce the risk of fingers getting caught when the cover is closed, a gap of approximately 20mm is maintained, with a distance of about 120mm to the rotating parts. ■Advanced features are standard! Standard equipment includes a motor overload lamp, inverter fault lamp, emergency stop switch for unexpected situations, and hanging hardware to support safe movement.

    Concrete Machinery
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Open the cover and the mixing stops! Mortar mixer with safety features.

1_sensor.png 2_meshcover.png 3_STD-N45A_550.png
  • Okasan Machinery Official Site
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basic information

1. The mixer and mixer cover are integrated, and when the mixer cover is opened, mixing stops. *For usability at construction sites, rotation will not stop for about 50mm to 100mm, but adjustments and responses are possible. Please consult us. 2. After opening the mixer cover and stopping the mixing, simply closing the mixer cover will not restart it; a "manual restart" by pressing the operation switch is required. 3. By attaching a mesh cover with a mesh size of 12mm or less on top of the mixer cover, a distance of about 100mm or more is maintained from the top to the rotating body. 4. To reduce the risk of fingers getting caught when the cover is closed, a gap of about 220mm has been maintained, ensuring a distance of about 120mm to the rotating part.

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P5

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Applications/Examples of results

High-performance mortar mixer for mixing mortar Fast-setting, early hardening, high-strength, tough, non-shrink mortar mixer Polymer cement mortar Fiber-reinforced mortar Non-shrink mortar Water-resistant non-segregating mortar Design-oriented high-performance mortar

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High-performance mortar, which is difficult to mix with a standard mortar mixer, is forcibly mixed with a double arm that rotates in reverse!

High-performance mortar, which is difficult to mix with a standard mortar mixer, is forcibly mixed with a double arm that rotates in reverse!

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Mortar Mixer Variation Catalog Vol. 3

Mortar Mixer Variation Catalog Vol. 3

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Company information

岡三機工

岡三機工

Building materials, supplies and fixtures manufacturers

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We are deeply embedded in the construction and civil engineering industry through the manufacturing of machines that "mix" and "deliver" various cement-based and resin-based materials, as well as the sale of related products. Primarily focusing on mixers for mixing and pumps for delivery, we develop products with a site-oriented approach, such as flow meters that enhance the reliability of on-site mixed materials and wireless remote control units that improve work efficiency. We are a specialized manufacturer of mortar mixers, grout mixers, mortar pumps, and grout pumps. Mortar pumps are also referred to as squeeze pumps or tube pumps and are utilized in injection work, pressure delivery work, and spraying work. Our sales bases are located in Tokyo, Nagoya, Osaka, and Fukuoka, while design and manufacturing are conducted at our Osaka factory. Experienced sales personnel assist customers with product selection, specification discussions, and delivery.

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