One,Equipment Overview
1、Name, Model, and Specifications
Name: Cement Sand Mixing Machine
Model:JJ-20H
2、Execution Standard
GB/T 17671-2021 "Cement Mortar Cube Strength Test Method (ISO Method)"
JC/T 681 "Planetary Cement Mortar Mixer"
3、Function Overview
Cement mortar mixerOur company refers to the national standardsGB/T 17671-2021 "Cement Aggregate Strength Test Method (ISO Method)", JC/T 681 "Planetary Cement Aggregate Mixer", and other industry or national standards for design and manufacturing. The planetary cement aggregate mixer consists of a cement aggregate mixer pot, stirring blades, and the corresponding mechanism.
4、Technical Specifications
Impeller RPM | Low Quick | High Please provide the Chinese content to be translated into American English. | ||
Self-rotating：140±2r/min | Public rotation：62±2r/min | Self-rotating：285±3r/min | Public Rotation：125±3r/min | |
Motion trajectory | The path of the agitator blades within the mixing kettleISO679—1989（E） | |||
Blade width | 135mm | |||
Agitator blade connection | Utilize quick connectors (allows for easy disassembly of blades for convenient cleaning) | |||
Blender Pot Volume | 5L（Wall thickness3mm） | |||
Mixing PotInstallation | Magnetic lock solid structure | |||
Work breaks | The working gap between the impeller and the mixing pot is3±1mm | |||
Electric Motor | Servo motor soft transmission（Power0.75kW） | |||
Dimensions | Long400×Wide560×High900（mm） | |||
Net Weight | 60kg | |||
Section Two:Technical Requirements
1、Agitator blade's self-rotation and revolution speeds at high and low speeds（See Table1）
TableThe rotational and orbital speeds of the agitator blades should be in compliance with the high and low-speed requirements.BelowRequirements
Self-rotatingr/min | Public rotationr/min | |
Low | 140±2 | 62±2 |
High | 285±3 | 125±3 |
2、Operation procedure for the concrete admixture mixer
2.1 Manual and automatic modes available
2.2 The automatic control program is set at low speed for 30 seconds ± 1 second, followed by another 30 seconds ± 1 second at low speed, while automatically initiating.Add sandAndAll added within 20s-30s, high speed for 30s ±1s, stop for 90s ±1s, high speed for 60s ±1s.。
2.3 Manual control with high, stop, and low speed settings, as well as sand addition function controlButton, and interlocks automatically.
3、Sand Adding Device
3.1 Completeness: Standard Sand Used for One TestAvailableAll into the pot, please.WillSpill-over.
3.2 Sanding Device: The cement mortar mixer uses a new sand-adding structure, controlled by a stepping motor via program to add sand, resulting in a more even sand-adding speed.The timing control is more accurate; as the sanding progresses, the motor can automatically vibrate several times.Higher sand addition completeness.
4、Blender Pot
4.1 The mixing pot is made of stainless steel.
4.2 Blender pot depth: ≈180mm.
4.3 Diameter of Mixing Pot: ≈200mm, the difference in diameter in the vertical direction should not exceed 0.5mm.
4.4 Blender pot wall thickness: ≈3㎜。
4.5 Magnetic suction locking structure for the mixing pot（Easier to pick up and put down, with no movement after locking)。
5、Agitator Blade
5.1 The agitator blades are made of stainless steel.
5.2 The mixing blade shaft is equipped with an eccentric locking device.With quickLocking DevicePerformLocking, locked afterN/AShake.
5.3 Total width of mixing blades: ≈135mm; Effective length of mixing blades: ≈130mm; Width of mixing blade wings: 8mm ± 1mm; Thickness of mixing blade wings: 6mm ± 2mm.
5.4 Impeller clearance to pot bottom and side walls:3㎜±1㎜。
6、Operating Status
6.1 A prominent sign indicating the direction of blade rotation is marked on the motor head. The blades rotate in a clockwise direction for self-rotation and counterclockwise for rotation.
6.2 The concrete mixer operates with normal sound, pot 1 and mixing bladesNo content provided.Visible oscillation.
7、Insulation properties
7.1 The electrical control of the asphalt concrete mixer is stable and reliable, with the whole machine having high insulation resistance.≥2MΩ
8、Appearance
8.1 The outer surface of the concrete mixer shall not be rough or uneven.
8.2 The non-processed surfaces of the concrete mixer should be treated to prevent rust, and the paint on the outer surface should be flat, smooth, even, and consistent in color.
8.3 The processing surface of the concrete mixer parts shall not have bumps, scratches, or rust spots.
8.4 The cement sand mixer is equipped with an automatic opening and closing door to prevent dust from flying.
Section 3:Structural Features
1. The new sand-adding structure utilizes programmable stepper motor variable-speed rotation, driving the sand bucket to rotate and evenly pour the sand slurry into the mixing pot. The sand-adding process is fully programmable to meet the standard sand-adding speed, ensuring a higher degree of completeness.
2. Magnetic lock for stirring pot, uses magnetic attraction to secure the stirring pot, making it easier to install and more stable, preventing any shaking of the pot during stirring.
3、The control mode employs an intelligent expert setting system, allowing users to customize the test process control methods according to their specific requirements and automatically complete the tests. It can achieve continuous loading and maintain load under any load condition. The test process is free from shocks and vibrations, offering excellent reading stability. The test process can be simulated and replayed.
4. StopperAsh greyDoorAdoptedAutomatic Swing DoorMethod: Doors can be easily opened and closed with the push of a button.。
5、AgitatorThe pot stand features an automatic lifting function achieved with a stepper motor and ball screw, ensuring precise positioning.
6. Main shaft designServo Motor Flexible Transmission，With planetary gear arrangement for reducedEquipment noise, extended service life。
