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ZKY-400B Type Steam Rapid Curing Box

It is suitable for cement plants, cement product manufacturers, construction contractors, ready-mixed concrete batching plants, highway and bridge engineering firms, as well as research institutions and universities, to perform standardized accelerated steam curing of concrete and cement‑based specimens for strength testing and assessment of setting time and dimensional stability.

Category:

Concrete Testing Equipment

Keywords:

E-mail:

lbt@lbt.ltd

WhatsApp:

+86-15102211717

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Description

Product Introduction

Reference standard:

Parameter Category	Parameter content
Working dimensions	Length 940 mm × Width 720 mm × Height 620 mm
Can hold test blocks	12 test cubes, each measuring 150×150×150 mm
Temperature control range	Room temperature–100℃
Temperature control accuracy	±1℃
Temperature control method	Automatic
Maximum temperature control time	9999min
Total heater power	6.5KW
Power supply	AC 220V 50Hz
Cooling rate	20℃–40℃ per hour (optional)

Structure and Working Principle of the Concrete Accelerated Steam Curing Chamber:

1. The concrete accelerated steam curing chamber consists of a curing section and a control cabinet.

a) The curing chamber consists of a lid, an outer shell, a stainless-steel inner liner, and supporting feet. The space between the outer shell and the inner liner is filled with high-efficiency insulation panels to provide thermal insulation. At the bottom, several channel steels support the full load of the test specimens. A water-sealing groove is provided around the perimeter of the chamber’s upper rim, and two immersion-type heating elements—each rated at 3 kW, for a total of 6 kW—are installed inside the inner liner. Drain and fill ports are located at the base of the inner liner.

b) The control cabinet is equipped with a complete set of control instruments, electrical components, and wiring terminals for all heating elements.

Instructions for use:

1. Water Filling: The curing box is equipped with a water inlet on its side, featuring a 6‑mm aluminum‑plastic pipe connector. Fill the box with water until the level reaches 250 mm from the bottom; the filling process will stop automatically. Then, close the box lid.

2. Heating: On the temperature controller, set the desired curing water temperature, then turn on the power switch. The curing water will begin to heat at a rate of 20°C per hour. If rapid heating is required, activate one set of both internal and external heaters, increasing the heating rate to 40°C per hour. Once the curing chamber transitions from the heating phase to the保温 (holding) phase, the instrument will automatically take over control.

3. Heat Preservation: On the control panel, set the desired heat‑preservation time on the timer; the system will then enter the heat‑preservation mode. Once the set time has elapsed, the instrument automatically shuts off the power.

Precautions:

1. After use, the curing chamber must be disconnected from the power supply to prevent the heating elements from remaining inadvertently in the heated state, which could lead to dehydration and equipment damage.

2. When the curing box is not used for an extended period, drain all the water, wipe it dry, and store it in a well-ventilated, dry location.

Related Product

HC-40 Concrete Multi-functional Strength Tester

The HC-40 concrete multi-functional strength tester is a high-performance testing device integrating multiple advanced technologies, specifically designed for evaluating the strength and quality of concrete.

FAQs

Do you supply full-set testing instruments for asphalt and geotechnical engineering projects?

We offer complete lab solutions including asphalt viscosity tester, asphalt rutting tester, geotextile permeability tester, low-temperature flexibility tester and concrete/cement test equipment, covering raw material detection for road, water conservancy and construction engineering projects

Can you customize fixtures or test machines based on our special test requirements? How about after-sales service and warranty?

We provide non-standard customization of test equipment and customized fixture clamps according to customers’ specimen size and test standards. All our testing machines enjoy 12-month factory warranty; overseas customers get remote online debugging guidance, spare parts supply and technical operation training. Our products have been exported to over 70 countries globally

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Does your pipe pressure burst testing machine control test temperature automatically? What’s its main application?

Yes, the constant-temperature circulating system keeps stable test environment during long-time hydrostatic resistance and instant burst pressure measurement of thermoplastic pipes. It complies with GB6111 standard and serves raw material inspection, new product R&D for plastic pipe manufacturers, third-party testing labs and university laboratories.

What kinds of pipes fit your ring stiffness tester? Can it do long-term creep testing?

This equipment is designed for HDPE, PVC corrugated pipes, plastic drainage pipes and various plastic tubular products. Apart from ring stiffness, ring flexibility and flattening tests, it supports continuous long-term creep tests up to 1000 hours (42 days) as required by industry specifications, widely used for pipe factories and construction quality inspection institutes.

What test items can your WDW series computer-controlled electronic universal testing machine complete? Which international standards can it meet?

Our WDW universal tester is applicable for tension, compression, bending, shearing and peeling tests of metal, plastic, rubber and composite materials. It supports test procedures in accordance with GB, ISO, ASTM, DIN, JIS multiple domestic and global standards. Equipped with high-precision servo drive and dedicated test software, it automatically collects, calculates and exports test data including tensile strength, elongation at break and elastic modulus.

Customer Reviews

European Plastic Pipe Manufacturer｜Purchase: Ring Stiffness & Hydrostatic Burst Tester

From Thomas Bennett, Quality Director, UK plastic pipe factory

2026.06.05

★★★★★

“We have purchased two sets of pipe testing equipment from Laibote (Tianjin) for 18 months. The ring stiffness and hydrostatic burst testing machines run stably for daily batch inspection, test data matches ISO standard requirements precisely, and the intelligent test software is easy for our operators to master. Their after-sales team offers timely remote technical guidance whenever we have operational problems, spare parts supply is efficient. We have arranged a second bulk order for our new production workshop and will recommend Laibote’s testing machines to our industry partners across Europe.”

Middle East Construction Lab｜Purchase: Universal Electronic Testing Machine & Geotextile Test Equipment

From Mohamed Kareem, Lab Manager, UAE third-party construction inspection institute

2026.06.05

★★★★★

“We compared multiple testing equipment brands from Europe and China before cooperating with Laibote. Their WDW universal tester and full-set geotextile testing instruments meet local construction testing standards perfectly. Custom fixtures tailored per our specimen specifications save much testing time. Pre-sale technical communication was patient and professional; engineers provided online operation training after goods arrived. Stable machine performance greatly improves our laboratory’s detection efficiency, we are satisfied with cost performance and overall service.”

Southeast Asia Rubber & Polymer Factory｜Purchase: Vicat Softening Point & Tensile Testing Machine

From Tanaka Hiroshi, R&D Supervisor, Indonesia rubber materials enterprise

2026.06.05

★★★★★

“Laibote’s Vicat softening point tester and electronic tensile machine have been applied to our raw material incoming inspection and new formula development for over one year. High testing accuracy effectively controls our product defect rate. What impresses us most is their responsive after-sale service; technical staff reply our troubleshooting requests within 24 hours even for time zone differences. Compared with expensive European brands, Laibote’s equipment balances quality and price excellently, we plan to expand procurement of auxiliary testing instruments next quarter.”

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ZKY-400B Type Steam Rapid Curing Box

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Whatsapp:+86-15102211717
E-mail:lbt@lbt.ltd

Address:Tianjin Jinghai Economic Development Zone

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