Tea processing
HONGMING Fresh-Air Variable-Temperature Tea Fermentation Room
HONGMING's fresh-air variable-temperature fermentation room ferments black tea after rolling. It works in batches and takes 600 市斤 of rolled leaf per batch, about 300 kg at 0.5 kg per 市斤, spread on 30 fermentation frames. The room measures 3.3 × 2.8 × 2.2 m and runs on 380 V with 10 kW power. Temperature, humidity and time are adjustable, and fresh air is exchanged continuously. HONGMING publishes no model code, control ranges, airflow or batch time, so ask for these with your quotation and confirm the room on a trial batch of your own leaf.
Zhejiang Hongming Tea Machinery Technology Co., Ltd. ↗
Build my procurement briefLoading 600 市斤 of rolled leaf on 30 frames
HONGMING gives 600 市斤 of rolled leaf for one fermentation batch and lists 30 frames. At 0.5 kg per 市斤 that is 300 kg, or 10 kg per frame on average. That average is simple arithmetic; HONGMING has not published a frame load or leaf-layer thickness. Frame shape, air distribution and your leaf decide how much each frame should carry.
| Catalogue statement | What to decide for your order |
|---|---|
| Describe your batch | Note tea type, rolled-leaf condition, time since rolling and the total charge. HONGMING lists this room for black-tea fermentation. |
| Get the frame layout | Ask for frame size, rated load, stacking and support details and the layout inside the room. Request HONGMING's loading method and maximum leaf depth. |
| Plan a loading trial | Agree the total mass, how it is spread across frames and how you will measure it. Note each frame position and the leaf result so uneven fermentation can be traced. |
Published specifications
Read each value with its stated conditions, and ask the manufacturer for any limit not listed here.
| Specification | Published value | Meaning / limit |
|---|---|---|
| Product name | Fresh-air intelligent variable-temperature fermentation room; model code not published [1] | Catalogue name only. Ask HONGMING to name the exact build and control version on the quotation. |
| Process material and purpose | Black-tea fermentation; rolled leaf [1] | The room takes leaf after rolling. Withering and drying are separate machines. |
| Batch loading | 600 市斤 of rolled leaf per batch [1] | About 300 kg at 1 市斤 = 0.5 kg. HONGMING gives no kg/h, daily output or load per frame. |
| Working mode | Intermittent / batch [1] | Leaf is loaded and unloaded in batches. Fresh-air exchange runs during the batch. |
| Outer dimensions | 3.3 m long × 2.8 m wide × 2.2 m high [1] | Ask for internal working size, frame layout, service clearance and installation footprint. |
| Power and supply | 10 kW; 380 V [1] | Ask for frequency, phase, maximum current, start-up load and energy per batch. |
| Accessories | 30 fermentation frames [1] | Request frame size, material, stacking method and the leaf load each frame may carry. |
| Process controls | Temperature, humidity and time adjustable [1] | Request the setting ranges, accuracy, sensor positions and control sequence for this room. |
| Air function | Continuous fresh-air exchange [1] | Ask for air flow, exchange rate, filter grade, exhaust connection and how air spreads through a loaded room. |
Batch operation with continuous fresh air
HONGMING describes the room as intermittent, meaning it processes leaf in batches. The continuous fresh-air exchange refers to ventilation while a batch runs. The page gives no fermentation time and no batches per day, so ask HONGMING for a cycle before planning daily output.
Ask for the operating sequence
Loading, door closing, warm-up, timed control, ventilation, endpoint checks, unloading and cleaning. Find out which steps need an operator and what happens to an interrupted batch.
Time each part of a trial
Record fermentation time, loading and unloading time, and waiting or cleaning time. Compare batches of similar rolled leaf brought to the same endpoint.
Sources [1]
Fresh air in, exhaust out, even conditions on every frame
HONGMING describes all-fresh-air operation with continuous exchange, stable temperature and humidity, and even fermentation. It publishes no flow rate, air-path drawing or loaded test. The photo shows the enclosure with pipework around it; ask for the air-change rate, filtration, extraction duty and pressure balance with the workshop.
| Air question | What to get before installation |
|---|---|
| Supply and exhaust | Inlet and outlet positions, connection sizes, allowed duct routes and design airflow at stated conditions. Ask whether external ducts, fans or conditioning units are included. |
| Workshop conditions | Give HONGMING your expected outside air conditions, neighbouring process areas and site ventilation. Ask for the room's environmental limits and how they affect a batch. |
| Spread across frames | Agree measuring points among the loaded frames and how differences are judged. One cabinet sensor reads one spot in the room. |
| Cleaning and air hygiene | Request cleaning instructions for the air system and frames, the filter type where fitted, and access and replacement intervals. |
Temperature programme and fermentation endpoint
HONGMING says temperature, humidity and time can be set, without numbers for this room. Its withering line has its own published ranges, which belong to that machine. The screen in the photo shows a trend chart; ask whether batch records are stored and exported, whether recipes can be saved, and how accurate the sensors are.
Know what is measured
Sensor types, positions, definitions, calibration and setting ranges. Ask which readings show air conditions and whether any reading measures the leaf.
Build the programme
With HONGMING and your tea maker, set the sequence, setpoints, allowed changes and timing for your rolled leaf. Ask how ventilation interacts with these settings and what alarms, sensor faults or power cuts do to a batch.
Agree the endpoint
Decide how fermentation progress and the finish are judged, with sampling from set frame positions. A humidity reading or a timer alone may miss the leaf's real state.
Keep the trial record
Store settings, readings, times, leaf observations and faults together as the reference for later batches.
Room size, delivery route and the 10 kW supply
The room measures 3.3 × 2.8 × 2.2 m. HONGMING gives 380 V and 10 kW without frequency or phase, and without saying whether all ventilation, conditioning and control loads are included. An elevator appears next to the room in the photo, but it is not on the accessory list. Hongming also makes a fresh tea leaf tray loader, so one layout drawing can cover both machines if you buy them together.
| Published figure | What to settle with HONGMING |
|---|---|
| Space and access | A plan and elevation showing the enclosure, door swing, frame-handling space and maintenance access. Ask for delivery modules, installation route, weights and floor support. |
| Electrical supply | Circuit and load list for your build, voltage tolerance, frequency, phase, connection and protection. Ask for energy use per batch and whether the room is built for a 50 Hz supply. |
| Other utilities | Ask whether humidification or conditioning needs water, drainage or extra air connections, and get the specifications. |
| What the price includes | List the 30 frames, controller, ventilation and conditioning parts and installation materials on the quotation. Price conveyors, racks and outside utility work separately. |
Acceptance batch, materials and handover
HONGMING publishes no model code, price, warranty, material grade or conformity declaration for this room. Enquire under the product name, then ask for a build identity, drawing revision, control version and parts list. Request the steel grade, food-contact status of leaf-contact surfaces and the cleaning and maintenance instructions for the room you will receive.
Agree an acceptance batch with known rolled-leaf condition, a written frame layout, a set control sequence and the endpoint you chose. Record readings across the frames, any interruptions and how far the result moved from the target. File these with the manuals, alarm and fault procedures, spare-part numbers and HONGMING's written commitment to correct faults. HONGMING describes the room as even and efficient; the acceptance batch shows how it performs on your leaf. Machines for the other tea stages, from several factories, are grouped on our tea processing page.
Buyer questions
Is 600 市斤 fresh leaf or finished tea?
It is rolled leaf per fermentation batch. That converts to about 300 kg at 0.5 kg per 市斤. Finished dry tea from one batch is far less. [1]
How much leaf can each frame hold?
HONGMING lists 30 frames and the total batch, but no load per frame, frame size or leaf depth. Ask for the loading arrangement in writing. [1]
What temperature and humidity ranges can I set?
HONGMING says the controls are adjustable but gives no ranges for this room. Ask for the setting ranges and accuracy of the controller supplied. [1]
Is this a continuous-feed fermentation line?
HONGMING lists it as intermittent. Leaf goes in and out in batches; the fresh air runs continuously during each batch. [1]
Can I export batch logs from the screen?
The photo shows a trend chart. Ask HONGMING for the controller version, how long records are kept and how they are exported. [2]
Prepare a model-specific brief
Write your actual conditions below. This local worksheet is not sent, uploaded or saved after reload. Copy or print it before leaving.
Sources
Specifications come from the manufacturer's publications listed below, with the date each was checked.
- Official fresh-air variable-temperature fermentation room
manufacturer · Checked 2026-10-11
Black-tea fermentation room: 600 市斤 of rolled leaf per batch, intermittent operation, dimensions, 380 V, 10 kW and 30 frames, with adjustable temperature, humidity and time.
- Original fermentation-room and leaf-frame illustration
manufacturer · Checked 2026-10-11
Shows the enclosure and control cabinet, a trend-screen inset and an operator handling leaf frames.
Report a correction through our contact form, quoting HONGMING Fresh-Air Variable-Temperature Tea Fermentation Room and the relevant specification.