Tea processing
Sunyoung 6CFJ Continuous Black-Tea Fermentation Module
Sunyoung's 6CFJ module ferments rolled black tea continuously. Leaf rides a feed conveyor into a multi-layer belt machine inside an enclosed room, where environmental equipment supplies air, warmth and humidity under one control system. The brochure lists three sizes: 6CFJ6 with 3 belt layers and 4 kW total power, and 6CFJ20 and 6CFJ40 with 5 layers at 19 and 20 kW. The larger two are room-scale projects over 10 m long. Buy it as a line project: define the incoming leaf, the residence programme, the room services and the discharge to the next stage together.
Zhejiang Sunyoung Machinery Co., Ltd. ↗
Build my procurement briefMap the leaf path from roller to dryer
Sunyoung describes rolled leaf moving across stacked belts in a closed, conditioned room and leaving for the next operation. No numeric programme or loaded residence result is published, so work these points out with Sunyoung first. What fermentation does between rolling and drying, for black tea in particular, is explained in our tea machinery stage guide.
Describe the leaf coming in
Leaf preparation, typical condition, and whether the roller upstream empties in batches or continuously.
Set the programme
Your tea specialists name the fermentation result wanted; Sunyoung states the environment and dwell time it supports for that leaf.
Pin down the belt route
Effective belt length, speed range, leaf loading and feed control. The leaf travels further than the outside length.
Plan the exit
How leaf is discharged into the next process, and what the line does when that process stops.
6CFJ6, 6CFJ20 and 6CFJ40 compared
The 20 and 40 share five belt layers, yet differ in size and total power. Capacity has to come from Sunyoung's loading and residence data for each model.
| Model | Layers / total power / size |
|---|---|
| 6CFJ6 | 3 layers; 4 kW; 4440 ×1175 ×2362 mm. |
| 6CFJ20 | 5 layers; 19 kW; 10280 ×5130 ×3500 mm. |
| 6CFJ40 | 5 layers; 20 kW; 13968 ×5130 ×3780 mm. |
| Before you choose | Ask for the layout, the loading and residence basis and a leaf result for each candidate. The 20 and 40 suffixes are model codes, so ask for each output rate. |
Sources [2]
Room, services and who supplies what
The product page puts a fermentation room, warming, humidifying and air supply inside the module. The brochure's model 20 example adds conveyors and control and power cabinets. Turn this into a site-specific supply list in the contract.
| Scope item | Settle in the offer |
|---|---|
| Room and installation | Who supplies the room or enclosure, its size and access, who installs it, and a site drawing. |
| Environmental equipment | Heating, humidifying and air-path layout, outside connections and the operating range for your room. |
| Power and controls | Load schedule, supply, control and power cabinets, and which outside loads sit inside the quoted total. |
| Line links | Feed and discharge controls, links to the machines either side, and what happens on a stoppage. |
| Commissioning and service | Who installs and tests the full system, the loaded acceptance test, and the operating and service manuals. |
Published specifications
Read each value with its stated conditions, and ask the manufacturer for any limit not listed here.
| Specification | Published value | Meaning / limit |
|---|---|---|
| Models in the brochure | 6CFJ6 /6CFJ20 /6CFJ40 [1] [2] | The product page explains the module; ask for the specification sheet of the size you pick. |
| What the system includes | Feed conveyor, continuous machine, fermentation room, environmental equipment and integrated controls [1] | Sunyoung's description of the module. Have the offer list what is supplied and what is installed. |
| Transport-belt layers | 6CFJ6: 3; 6CFJ20: 5; 6CFJ40: 5 [2] | Layer count describes the build. Residence time and output depend on belt length, speed and load. |
| Total power | 4 /19 /20 kW, respectively [2] | Brochure total-power figures. Ask for an electrical schedule showing which room equipment is counted. |
| 6CFJ6 size | 4440 ×1175 ×2362 mm [2] | Length, width, height. Ask for a room and service access plan. |
| 6CFJ20 size | 10280 ×5130 ×3500 mm [2] | A project-scale assembly, far larger than a fermentation cabinet. |
| 6CFJ40 size | 13968 ×5130 ×3780 mm [2] | Same width as the 20, longer and taller. Loading and leaf path come from the layout drawing. |
| Environmental functions | Air/oxygen supply, air exchange, warming and humidification [1] [2] | Ask how each is supplied, the working limits, where sensors sit and how evenly conditions hold. |
| 6CFJ20 example package | One red-tea fermentation unit, belt conveyor/elevator and control/power cabinets [2] | The brochure's sample package for model 20. Request the parts list for your own order. |
| Throughput and residence time | Ask Sunyoung for the figures for your model [1] [2] | The model table gives no kg/h, effective belt length, belt speed or dwell-time range. |
Proving even conditions along a loaded belt
Sunyoung credits even conditions to the layout of its temperature and humidity pipework and calls the environment controllable. These sources give no sensor map, setpoint range, measurement accuracy or loaded uniformity figures.
Ask for a run that logs leaf loading, belt movement and room readings along the whole route. Agree how residence time and the finished tea will be assessed, including start-up and a stop-start case. One steady reading at the controller describes one spot; get temperature, humidity and timing targets from Sunyoung for your leaf.
Continuous line or batch cabinet
This module is specified by belt layers and total power. Sunyoung's 5B and 10B cabinets are specified by leaf-spreading area and 2 kW heating, and carry their own naming and unit questions. Keep cabinet figures out of a continuous-line comparison.
Select the continuous line by its leaf flow, room and the controls delivered. If you are weighing a batch cabinet too, compare the whole loading and handling routine and the tea each produces, each in the configuration Sunyoung confirms.
Buyer questions
With five layers each, do the 6CFJ20 and 6CFJ40 have the same capacity?
Their size and power differ, and Sunyoung publishes no hourly capacity or residence data for either. Ask for both. [2]
Can I work out residence time from the machine length?
You also need effective belt length, speed, loading and control settings. Ask Sunyoung for the transport arrangement. [1] [2]
Are 4/19/20 kW the energy used per tonne?
They are total power figures from the brochure. Energy per tonne needs a measured run on a defined scope. [2]
The installation photo and your layout drawing
The product entry shows Sunyoung's own photo of conveyors feeding an enclosed fermentation installation beside cabinet equipment. No model tag can be read, so take it as a picture of the 6CFJ family in general.
Ask for dated photos and the approved drawing of the quoted build, with openings, leaf transfer heights, cleaning access and service space. Also request delivered weight, floor loading and a full installation and utility plan, since the brochure sizes leave out walkways and work routes. If the 6CHB continuous tea dryers will follow the fermentation room, put their infeed on the same plan.
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 Sunyoung continuous fermentation module page
manufacturer · Checked 2026-10-11
System parts and how the continuous module works, including the environmental functions.
- Official Sunyoung brochure, printed page 27
manufacturer · Checked 2026-10-11
Belt layers, total power and dimensions for 6CFJ6, 6CFJ20 and 6CFJ40, plus the model 20 package example.
- Original manufacturer continuous-installation photograph
manufacturer · Checked 2026-10-11
Photo of a 6CFJ-type installation with conveyors and cabinets; no model tag visible.
Report a correction through our contact form, quoting 6CFJ6 /6CFJ20 /6CFJ40 and the relevant specification.