Grain processing
Guangchang TGSS, TGSU and TLSS Grain Conveyors
Guangchang builds three horizontal conveyors for grain, feed and other small granular or powder materials. The TGSS enmeshed drag conveyor handles 8–120 t/h with chain speeds of 0.4–0.8 m/s. The TGSU horizontal drag conveyor covers 10–260 t/h on 60, 80 or 100 mm chain pitch. The TLSS screw conveyor handles 2–50 t/h. The drag models offer blockage and broken-chain alarms. None of the sheets lists motor power, so send your route length and material for drive sizing.
Jiaxing Guangchang Machinery Co., Ltd. ↗
Build my procurement briefTGSS, TGSU and TLSS: how they differ
All three sheets name grain, feed and small granular or powder materials; the screw sheet adds small pieces. Choose the mechanism from your route and product first, then the size. Vertical lifts are a separate job, handled by Guangchang's TDTG bucket elevator.
| Conveyor | Features and what to ask |
|---|---|
| TGSS enmeshed drag | Several feed and discharge points, polyurethane scrapers and wear-resistant guide material or polymer wear plates. Give the exact inlet and outlet positions you need. |
| TGSU horizontal drag | Sleeve-roller chain, short-pitch sprockets, cleaning plates and packing seals. Ask how much material stays in the trough after a run. |
| TLSS screw | Turning screw flights push material along a horizontal trough. Only capacity is printed; ask for shaft speed, screw diameter and pitch, contact material and motor power. |
| Your route | Feed and discharge points, length and any rise, the equipment before and after, and the material condition. All three sheets describe horizontal conveying. |
Published specifications
Read each value with its stated conditions, and ask the manufacturer for any limit not listed here.
| Specification | Published value | Meaning / limit |
|---|---|---|
| Conveyor types | TGSS enmeshed drag / TGSU horizontal drag / TLSS screw [1] [2] | Three different mechanisms. A shared model number such as 32 or 40 refers to a different machine in each family. |
| Capacity by family | TGSS 8–120; TGSU 10–260; TLSS 2–50 t/h [1] [2] | Rows by model are below. Material density, route length and elevation are not stated with them. |
| Chain speed | TGSS and TGSU rows explicitly m/s [1] [2] | Linear chain speed. The TLSS screw sheet gives no rotation speed. |
| TGSU groove number | Groove-number row 160–500, heading kw [2] | The printed unit does not fit a dimension. Ask Guangchang what the numbers measure. Chain pitch is given separately in mm. |
| Drive | No motor-power or route-length table supplied [1] [2] | Guangchang sizes the motor for your route, material and starting load. |
TGSS enmeshed drag: capacity and chain speed
The speed row is printed in m/s, although its Chinese heading mentions maximum rotational speed. Read it as chain speed. The sheet does not say what material or route length the capacities assume.
| TGSS model | Capacity and chain speed |
|---|---|
| TGSS16 | 8–15 t/h; 0.4–0.6 m/s. |
| TGSS20 | 10–20 t/h; 0.4–0.6 m/s. |
| TGSS25 | 20–30 t/h; 0.4–0.6 m/s. |
| TGSS32 | 30–50 t/h; 0.4–0.8 m/s. |
| TGSS40 | 50–80 t/h; 0.4–0.8 m/s. |
| TGSS50 | 80–120 t/h; 0.4–0.8 m/s. |
Sources [1]
TGSU horizontal drag: chain pitch, speed and groove number
Chain pitch is in mm and line speed in m/s. The J-type groove-number row prints values from 160 to 500 under a kw heading. Ask Guangchang to confirm in writing what these numbers measure and to supply a drawing with correct units.
| Model and capacity | Chain pitch, speed and groove number |
|---|---|
| TGSU16: 10–25 t/h | Pitch 60 mm; speed 0.35–0.6 m/s; groove number 160. |
| TGSU20: 25–30 t/h | 60 mm; 0.35–0.6 m/s; groove number 200. |
| TGSU25: 30–45 t/h | 60 mm; 0.35–0.6 m/s; groove number 250. |
| TGSU32: 45–80 t/h | 80 mm; 0.35–0.7 m/s; groove number 320. |
| TGSU36: 80–120 t/h | 80 mm; 0.35–0.7 m/s; groove number 360. |
| TGSU40: 120–150 t/h | 80 mm; 0.35–0.7 m/s; groove number 400. |
| TGSU50: 150–260 t/h | 100 mm; 0.35–0.7 m/s; groove number 500. |
Sources [2]
TLSS screw conveyor: capacity
The screw section lists capacity only. Speed, screw geometry, power and length come from Guangchang's quote for your duty; the chain figures above belong to the drag conveyors.
| TLSS model | Capacity |
|---|---|
| TLSS16 | 2–6 t/h. |
| TLSS20 | 4–10 t/h. |
| TLSS25 | 8–17 t/h. |
| TLSS32 | 18–34 t/h. |
| TLSS40 | 30–50 t/h. |
| For your order | Ask for screw diameter and pitch, shaft speed, drive and the route and material conditions the size is based on. |
Sources [2]
Starting, alarms, wear parts and residue
TGSS has a heavy-load starting device and blockage and broken-chain alarms. TGSU also lists blockage and broken-chain alarms and is described as self-cleaning with no residue. The TLSS sheet lists no such features.
| Guangchang's feature | What to confirm |
|---|---|
| Loaded start | Whether the conveyor may start full, the drive selected for that, and the starting instructions for your route. |
| Blockage and broken-chain alarm | How faults are detected and shown, and whether the alarm stops the conveyor and upstream feed. |
| Take-up and wear parts | TGSS has tail chain tensioning, scrapers and guide or wear plates. Ask for chain details, material grades, and inspection and tensioning instructions. |
| Residue | How much material stays in a TGSU after a run or batch change, and the access provided for cleaning. |
| Supply list | A component and control list for the family you order, so it is clear which protection is included. |
Sealing, transfer points and dust
Guangchang describes the drag conveyors as well sealed, quiet and easy to maintain. TGSU adds packing seals and access openings. No leakage or noise figures, pressure rating, aspiration duty or hazardous-area certificate is published.
OSHA's technical manual for ethanol plants explains that dust escapes at transfer points when equipment leaks or blocks, and that controls are set facility by facility. Plan dust control for your own plant with that in mind. Matching conveyor rates to the cleaners and elevators around them is covered in our grain cleaning and handling line basics guide.
Ask Guangchang for the inlet, outlet, drive and shaft interfaces, the operating conditions the conveyor is built for, cleaning access, and any aspiration or protection it supplies. Check grain breakage, residue, sealing and power draw as separate points at commissioning.
Route drawing and commissioning
The sheets give no full dimensions, weight, support loads, lifting details or drive curves. Each conveyor is built to a route-specific drawing. Where a route splits, the TBDQ three-way chute diverters from the same catalogue fit into that drawing.
Define the route
Family and model, material and feed rate, length, inlet and discharge positions and destinations. Settle the TGSU groove-number unit before layout.
Get the build drawing
Dimensions, supports, chain or screw, drive, start and alarm behaviour, and service access.
Test on site
Agree tonnage and grain condition at delivery, stoppages, residue at changeover and sealing checks, using a method Guangchang supports.
Keep spare references
Chain, scraper, wear plate or screw references, drive, seals and controls, with Guangchang's instructions and lead times.
Buyer questions
Can the TGSS chain speed tell me the TLSS screw speed?
No. TGSS speed is linear chain speed in m/s, and the screw sheet gives no rotation speed. Ask Guangchang for the screw speed of the size you need. [1] [2]
Are the TGSU groove numbers in millimetres?
The heading prints kw, which does not fit a dimension. Ask Guangchang to confirm the unit and send a drawing. Chain pitch is given separately in mm. [2]
Does the TGSU leave any material behind?
Guangchang describes it as self-cleaning with no residue. If batch carryover matters, agree a cleaning arrangement and a check at commissioning. [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 TGSS enmeshed-drag conveyor sheet
manufacturer · Checked 2026-10-12
Six TGSS capacity rows with chain speed in m/s; describes multiple feed and discharge points, heavy-load start and blockage and broken-chain alarms.
- Official TGSU drag and TLSS screw combined sheet
manufacturer · Checked 2026-10-12
Seven TGSU rows with chain pitch in mm, line speed and capacity, a groove-number row headed kw, and five TLSS screw capacities.
- Official conveyor and distributor catalogue
manufacturer · Checked 2026-10-12
Catalogue entries linking to the conveyor sheets; the horizontal-drag entry includes the screw conveyor section.
- OSHA Technical Manual: transfer-point dust context
government · Checked 2026-10-12
Explains dust release at grain transfer points and facility-specific dust controls.
Report a correction through our contact form, quoting Guangchang TGSS, TGSU and TLSS Grain Conveyors and the relevant specification.