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HBY-32/64 Vertical Cement Constant-Temperature Water-Curing Box
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- Product Description
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HBY-32, 64 Constant-Temperature Water Curing Tanks
I. Overview
The HBY‑32 and HBY‑64 constant‑temperature water curing chambers have been redesigned based on the original model. The improved units offer more uniform internal temperatures, reduced temperature differentials, and eliminate dripping from the chamber top. Designed and manufactured in accordance with the latest national standards for the standard curing of cement, concrete, and cement‑based products, these chambers are suitable for cement plants, construction firms, highway and bridge engineering organizations, as well as relevant research and quality‑inspection agencies, providing standardized curing conditions for strength testing, dimensional stability assessments, and setting‑time measurements of cement, concrete, and cement‑product specimens.
II. Main Technical Specifications of the HBY-32 and 64 Model Constant-Temperature Water Curing Tanks
1. Temperature controller accuracy: ±1℃
2. Power supply voltage: 220V ±10%
3. Power supply frequency: 50 Hz
4. Compressor power: Model 32, 180 W; Model 64, 240 W.
5. Heater power: 1000 W
6. Studio dimensions: Type 32, 180×320×75 mm, 30 units
64-type, 180×320×70 mm, 60 pieces
7. External dimensions: Type 32, 800×850×1600 (mm)
Type 64, 1100*850*1820 (mm)
III. Structure and Principle of the Constant-Temperature Water Bath Incubator
1. The cabinet consists of inner, middle, and outer layers: the inner liner is welded from stainless steel, the outer shell is formed by bending high-quality cold-rolled steel sheet, and the intermediate insulation layer is made of polyurethane foam. It features internal stainless steel shelves and offers two configurations—30‑cell and 60‑cell workstations—each capable of accommodating one set of 4×4×16 test specimens.
2. Temperature control is implemented using an integrated circuit, with independent upper and lower temperature setpoints, enabling precise temperature regulation.
3. The refrigeration system employs a compressor and a finned‑tube evaporator, while heating is provided by U‑shaped stainless‑steel electric heating elements. Inside the chamber, eight fans facilitate forced air circulation for enhanced heat exchange, thereby minimizing temperature differentials and improving temperature uniformity.
4. Operating Principle
When the temperature inside the curing chamber exceeds the setpoint, the thermostat activates the cooling system; when the temperature falls below the setpoint, it engages the heating system. This cyclical control maintains the temperature within the specified range. To prevent frequent relay cycling, the factory‑set temperature limits are 21°C for the upper threshold and 19°C for the lower threshold, resulting in a hysteresis of ±1°C.
IV. Instructions for Use of the HBY-32 and 64 Model Constant-Temperature Water Curing Tanks
1. Place the instrument in a well-ventilated, dry environment, at least 50 cm away from the wall, ensuring it is stable and level. Verify that the cabinet door opens and closes smoothly. (Install a 220 V, 1.5 kW voltage stabilizer at the front of the curing chamber.)
2. Add water to the drawer until it reaches the appropriate level (the test specimens must be fully submerged).
3. Insert the plug into a 220V outlet with proper grounding.
4. Adjust the thermostat knob to set the desired temperature.
5. Press the power button, and the instrument will immediately enter working mode.
V. Precautions for the Constant-Temperature Water-Curing Box
1. The instrument must be placed on a stable surface with reliable grounding.
2. Do not allow the water in the tank to run out during operation.
3. When the instrument is set to a temperature within ±1°C, any actuation is not considered a malfunction.
4. A voltage regulator should be used when the mains voltage fluctuates by more than ±10%.
5. Under no circumstances shall the instrument be tilted by more than 45 degrees.
VI. Troubleshooting the Water-Curing Box
1. If the power indicator light does not illuminate, it indicates that power is not being supplied to the instrument. After confirming that the external power source is functioning properly, check whether the switch is intact.
2. If the heating indicator light does not illuminate when the chamber temperature is low, check whether the contactor is energized or if its contacts are burnt. If the indicator light is on but the chamber temperature remains very low, it indicates that the heating element has failed.
3. If the refrigeration indicator light does not illuminate when the compartment temperature is high, check whether the wiring between the temperature controller and the refrigeration system has come loose. If the indicator light is on, verify that the overload protector and starter are functioning properly; if they are normal, the compressor is faulty and should be replaced.
4. If there is a significant temperature difference inside the cabinet, check whether the compressor is operating. If the refrigeration indicator light is on but the fan is not running, the fan is faulty. With the above checks, except for malfunctions in the refrigeration system—which must be referred to the service department for repair—all other issues can be resolved independently.
5. This product is covered by a six-month warranty.
6. For special requirements or quality issues, please contact the distributor directly. Our company manufactures laboratory and testing equipment—including road‑related instruments, cement and building‑material testing devices, rapid curing chambers, drying ovens, high‑temperature electric furnaces, sample preparation machines, and boiling‑water autoclaves—and also offers complementary sales of both domestic and imported instruments.
VII. Packing List
1. Host: 1 unit
2. Hose: 1 piece
3. Instruction manual: 1 copy
4. Certificate of Conformity: 1 copy
Reasons to Choose Us
Multiple specifications to choose from
Source factory
Ships promptly
Thoughtful service
Supports customization
Selected Raw Materials
Factory Advantages
Deep expertise, comprehensive product range
√Over 10 years of dedicated R&D and manufacturing of testing instruments for highway, construction, geotechnical, asphalt, cement, and other engineering applications.
√Comprehensive category coverage: from raw material testing to construction quality control, a one-stop solution.
√Compliant with international standards such as ISO and GB, meeting the regulatory requirements of overseas projects.
Reliable quality and excellent value for money.
√ We strictly adhere to the ISO 9001 quality management system, select core components from internationally renowned brands, and conduct full inspection before shipment.
√ In-house manufacturing + a large-scale supply chain deliver strong price competitiveness, with no markups from intermediaries.
√Stable and durable, with a low failure rate, reducing operational and maintenance costs for overseas customers.
Efficient delivery, global service
√In-stock inventory plus flexible manufacturing ensures 7–15 day rapid delivery, with support for customized rush orders.
√Cangzhou’s Lin’gang District boasts a strategic location, with convenient sea and air transportation and globally traceable logistics.
√Multilingual team with 24-hour technical support, offering installation and commissioning, training, a three‑year warranty, and ongoing follow-up services.
Operating with integrity and backed by extensive experience.
√13 years of industry expertise, serving over 30 countries and regions worldwide.
√The principle of “integrity in business, mutual benefit.”
√Deep understanding of international engineering standards and procurement processes, with efficient communication and seamless collaboration.
Frequently Asked Questions
Is the universal materials testing machine experiencing loading stalling or abnormal zeroing of load data?
1. Loading lag: Clean the lead screw and guide rails, apply lubricant, and remove debris from the transmission components. 2. Zeroing anomaly: Restart the equipment system, calibrate the load and displacement zero points, and check for poor electrical contact in the sensor wiring. 3. Overloading is strictly prohibited; before testing, verify that the grips are securely tightened to prevent eccentric loading of the specimen.
How often should in‑instrument verification be performed? Which instruments are required to undergo it?
High‑precision, high‑frequency‑use, and drift‑prone equipment (such as balances, penetration testers, water permeability testers, and sensor‑type devices) shall undergo intermediate verification every three months; routine equipment shall be verified every six months. Equipment that is within the verification/calibration interval, has been repaired following a malfunction, or has been relocated must undergo additional intermediate verification, with complete verification records maintained.
Is the repeatability of pendulum-type pavement friction coefficient measurements poor?
Key points for resolution: Prior to testing, thoroughly clean the pavement at each measurement point, ensuring there is no standing water, dust, or debris; calibrate the instrument’s level and zero point to ensure a standardized pendulum‑drop trajectory; strictly control the pendulum’s sliding distance; avoid conditions such as strong winds, wet pavement, or abrupt temperature changes; and calculate the average of multiple measurements taken at the same point.
How should one handle cases where the pavement infiltration meter data exceeds allowable error limits, exhibits leakage, or shows abnormal readings?
1. Sealing leaks: Inspect the base seal for aging or damage and replace it promptly; before testing, firmly press down on the base to expel any residual air inside. 2. Data deviation > ±2%: Calibrate the level sensor, clean any fouling from the graduated cylinder, and check for damage to the scale markings. 3. Compliance with new regulations: For seepage rates ≤ 300 mL/min, existing equipment may continue to be used; for rates > 300 mL/min, the accuracy of older equipment fails to meet standards, and such equipment must not be used.
Can the old Marshall compaction apparatus and stability tester still be used?
According to the 2025 revised asphalt testing procedures, after adjusting the indenter configuration on the Marshall stability test apparatus, existing instruments currently in use may continue to be operated normally without mandatory replacement; only periodic calibration to maintain accuracy and ensure equipment integrity is required.
What are the causes of uneven compaction and layered cracking in molded specimens during compaction testing?
Main causes: non‑vertical drop of the compaction hammer, rail jamming, excessive deviation in hammer weight, uneven layer thickness during loading, insufficient number of blows, or overload. Solutions: regularly lubricate the guide rails; verify and correct the vertical alignment of the hammer; strictly follow the procedure for layered material placement and step‑by‑step compaction; ensure that hammer weight and drop height comply with standards; and prevent over‑thick layers.
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