TDG NISSIN
天通日进精密技术有限公司
TDG NISSIN builds the machines that turn grown monocrystalline ingots and cast polycrystalline blocks into wafer-ready pieces: croppers for heads and tails, squarers for round segments and a grinder for faces and corners. The factory is in Haining, Zhejiang, with a marketing office in Shanghai and a contact in Japan.
Supplier at a glance
- Location
- Haining, Zhejiang
- Equipment listed here
- Wire saws · Silicon ingot grinding
- PV equipment range
- Silicon ingot and block cropping, squaring, and grinding with rounding or chamfering ahead of wafer slicing. [3]
- Head office
- 129 Shuanglian Road, Haining, as given on the company contact page. [2]
- Company history
- Formed in 2014 and integrated with earlier grinding and precision-machine businesses in 2018; older dates belong to those predecessors. [1]
- Group filing
- Named among TDG Holding's consolidated manufacturing subsidiaries in the 2019 annual report; ask for present ownership. [4]
- Profile sources
- 19 named sources; source list
Company scope
What the company makes
天通日进精密技术有限公司 sells its machines under the TDG NISSIN brand. The company develops and manufactures cutting, grinding, polishing and automation equipment for semiconductor silicon, sapphire and photovoltaic materials. For a solar buyer the relevant range is the PV catalogue: ingot and block cropping, multi-ingot squaring, and face grinding with rounding or chamfering, all done before the wafer saw. The semiconductor and sapphire machines belong to separate product lines and are left out here.
The present company was formed in 2014. In 2018 it brought earlier grinding and precision-machine businesses together. The company history traces those roots to Shanghai Nissin in 1995, a Shanghai semiconductor business in 2008, a TDG grinding operation in 2011 and a Zhejiang precision business in 2014. So 1995 marks the oldest predecessor, and the current legal company dates from 2014. Older company records carry an earlier English name; today the business trades under the TDG NISSIN logo and its Chinese registered name.
The head office address is 129 Shuanglian Road, Haining, and the company describes its manufacturing site as part of the Haining economic development zone. The contact page also lists a marketing location in Shanghai and a contact point in Japan. If it matters which site builds and tests your machine, or who will service it in your region, put that question in the request for quotation.
Most of the useful detail sits in bilingual image sheets linked from each product page. The croppers differ in how many ingots or blocks they take per cut, the diameter and length they accept, the wire diameter, how the end cuts are arranged and what utilities they need. The two-position squarer lists automatic clamping, orientation detection and side-material removal. The combined cropping and squaring unit and the grinding machine each handle a different step in shaping the silicon. Wire speed and batch size describe the machine range; your accepted output per shift comes from a measured trial on your own stock.
A few catalogue entries contradict each other, and they affect which model you pick. The NWSS-DH02 text gives 8–12 inch stock and raw lengths above four metres, while the table beneath it allows a single four-metre ingot of 6–8.5 inch. The NWSS-7S and NWSS-6S sheets carry English headings that say single-end cropping, but their Chinese headings and descriptions say both ends. The three-ingot NWSS-210 sheet lists 400 L/min of cooling water, far above the other croppers, so size your cooling loop for that figure or ask for the current one. For all of these, ask TDG NISSIN for a current controlled specification and a demonstration cut.
TDG Holding's 2019 annual report, published in April 2020, names the exact Chinese company on pages 73 and 141 among its consolidated manufacturing subsidiaries and explains the group link at that time. That filing describes the company as it stood in that reporting year. The company website also quotes a site area, a registered capital and patent counts without a date, so ask for current figures and present ownership if your supplier approval needs them.
Start an enquiry with the incoming ingot or block geometry, the segments or square sections you plan to keep, the surface damage you can accept and how you will measure the result downstream. Then agree the exact model, fixture, cut map and the cooling, air and electrical package. At acceptance, measure the result at every work position with loading, waste removal and fault recovery included. Ask for current availability, the site where the machine is built and tested, and who is responsible for service.
Equipment portfolio
Start with the actual equipment
The entries below cover selected products and series from this manufacturer. Ask for the full catalogue if your project needs other models.
Adjustable multiwire monocrystal cropper →
The TDG NISSIN NWSS-840 crops long monocrystalline ingots into six segments with seven cuts, and can also take head, tail and sample slices. It accepts ingots 1800–4000 mm long and sets cut lengths from 300 to 700 mm, with automatic centring and…
Specifications & selection questions →Combined monocrystalline cropping and squaring machine →
The NWSS-JK4700 crops and squares monocrystalline silicon on one machine, and TDG NISSIN says both jobs can run at the same time. It takes one 4 m ingot of 8–9 inch diameter and works segments 150–700 mm long. It suits plants that… [11]
Specifications & selection questions →G5 diamond-wire batch squarer →
The NWSS-125G is the smaller G5 diamond-wire squarer in the TDG NISSIN range. It squares 25 mono ingots of 6 or 6.5 inch or 16 of 8 or 8.5 inch, or cuts an 840 × 840 × 500 mm poly block into… [16]
Specifications & selection questions →G6 diamond-wire batch squarer →
NWSS-125H is the TDG NISSIN G6 squarer for fixed-abrasive diamond wire. Its mono fixtures carry 36 ingots at 6 or 6.5 inch, or 25 at 8 or 8.5 inch, or cuts a 1000 × 1000 × 500 mm poly block into 36… [14]
Specifications & selection questions →G6 slurry-wire batch squarer →
TDG NISSIN's NWSS-125M(K) squares a G6 load with slurry-assisted multiwire cutting. One fixture takes 36 mono ingots of 6 or 6.5 inch, another takes 25 of 8 or 8.5 inch, and a poly setup turns a 1000 × 1000 × 450 mm… [12]
Specifications & selection questions →Large-batch polycrystal end cropper →
The TDG NISSIN NWSS-360 is a diamond multiwire cropper for large polysilicon batches. Its page text names two loads: 36 blocks 400 mm long or 48 blocks 300 mm long. The data sheet covers the 36-block load at 156 × 156 ×… [18]
Specifications & selection questions →NWSS-250 and 250A 25-block polycrystal cropping family →
TDG NISSIN's NWSS-250 and NWSS-250A are diamond-wire croppers that take the head and tail off 25 polycrystalline blocks in one load. One data sheet lists both: 156 × 156 × 300 mm stock, 0.31–0.33 mm coated wire, 900 m/min. The 250A has… [17]
Specifications & selection questions →Seven-block double-end polycrystal cropper →
The TDG NISSIN NWSS-7S is a diamond multiwire cropper that cuts heads and tails off seven 156 × 156 mm polycrystalline blocks in one pass, taking 270–450 mm incoming lengths down to 230–400 mm. It draws 39 kW at 380 V and… [5]
Specifications & selection questions →Silicon ingot face grinding and rounding centre →
The NVG-7500 is a TDG NISSIN vertical centre that grinds the flat faces and rounds or chamfers the corners of mono ingots and poly blocks after squaring. It takes 156–160 mm sides or 8–10 inch diameters, spins wheels up to 3000 rpm… [13]
Specifications & selection questions →Single-ingot monocrystalline squarer →
The NWSS-DD700Z squares one monocrystalline ingot segment at a time with diamond wire. TDG NISSIN lists 150–700 mm segments in 200–250 mm diameter. Loading and unloading grippers come with the machine; edge detection and automatic centring are options. It suits smaller squaring… [10]
Specifications & selection questions →Single-wire monocrystalline ingot cropper →
The TDG NISSIN NWSS-DH02 is a compact single-wire diamond machine for cropping monocrystalline ingots and cutting sample slices, with finished lengths of 100–700 mm, 12 kW power and a 2000 kg frame. Its text gives 8–12 inch stock over four metres long,… [7]
Specifications & selection questions →Six-block double-end polycrystal cropper →
The NWSS-6S is TDG NISSIN's six-block cropper for polycrystalline silicon. It trims the head and tail of six 156 × 156 mm blocks with diamond multiwire, taking 220–400 mm incoming blocks down to 160–330 mm. Two rotating tables let the next batch… [8]
Specifications & selection questions →Three-ingot six-head monocrystalline cropper →
The NWSS-210 crops three monocrystalline ingots at the same time using diamond multiwire across six cutting heads. TDG NISSIN lists 2.2 m ingots in 6, 6.5, 8 or 8.5 inch diameters and a thin 0.31–0.33 mm coated wire. It fits plants that… [9]
Specifications & selection questions →Twelve-block single-end polycrystal cropper →
The TDG NISSIN NWSS-812 crops one end, head or tail, of twelve polycrystalline blocks per cut. It takes 156 × 156 mm blocks 200 to 400 mm long and runs thicker 0.37–0.42 mm coated wire at up to 1200 m/min from a… [19]
Specifications & selection questions →Two-station monocrystalline ingot squarer →
The TDG NISSIN NWSS-DS700Z squares two monocrystalline ingot segments per cut with diamond wire. It takes 200–250 mm diameter segments 150–900 mm long, centres them with mechanical grippers, finds the crystal edge with a measuring instrument and removes side pieces automatically. Power… [6]
Specifications & selection questions →Process steps
Which TDG NISSIN machine does which step
Crop the incoming stock
Croppers take off heads and tails or cut segments and samples. Pick a one-ingot, three-ingot or multi-block polycrystalline model by your cut map. The top wire speed matters less than how many pieces your plan needs per cut. [3][5][7][9]
Square the monocrystalline segments
Squarers turn round segments into square bars. State the incoming diameter, the final cross-section and the orientation you need. Two-position clamping and side-material removal each get their own acceptance check. [6][10]
Combine cropping and squaring
The NWSS-JK4700 is listed for both cropping and squaring. Before you drop a separate station from your line, ask where each operation happens on the unit and how much it really processes at once. [11]
Grind faces and finish corners
The integrated grinding, rounding and chamfering machine works on squared bars and cast blocks. Give TDG NISSIN the target geometry and damage limits, and ask for the wheel and material package and the inspection that follows. [13]
Company background
Who TDG NISSIN is and where it works
Name used today
The website logo reads TDG NISSIN and the footer gives the full Chinese registered name. An older English name still appears in earlier records, so match the Chinese name on contracts and invoices. [1][2]
Formed in 2014, integrated in 2018
These are two separate events. The company narrative and its history list describe the predecessors in overlapping ways; the 1995 start date belongs to Shanghai Nissin. [1]
Haining, Shanghai and Japan
Haining is the head office and the manufacturing location. Shanghai handles marketing and Japan is a contact point. Ask which site will build and test your machine and who covers service. [2]
Parent company filing
TDG Holding's 2019 annual report lists the company as a manufacturing subsidiary and explains the group link in that year. Its figures describe that period, so ask for current ownership and capacity. [4]
Points to settle
Catalogue entries to settle before you compare quotes
NWSS-DH02 stock size
The text and the table give different diameters and raw lengths. Ask for the support and fixture drawing of the configuration you are buying, with its current size range. [7]
NWSS-7S and NWSS-6S end cuts
The Chinese descriptions say both ends are cut; the English headings say one end. Ask for the cutting planes and the finished-length limits of each model. [5][8]
NWSS-210 cooling water
The sheet lists 400 L/min of cooling water. Plan the circuit, filtration and plant capacity for that figure until TDG NISSIN gives a different current value. [9]
Sheet age and output claims
The sheets online are older uploads. Phrases about high speed or the latest development describe the design intent; ask for a measured full cycle and a current delivery date. [3]
Enquiry package
What to send TDG NISSIN, and what to check at acceptance
Describe the incoming silicon
Mono or polycrystalline, actual diameter or block section, length spread, weight and typical incoming defects. Mark which pieces you keep and which you reject. [3]
Define the cut and how you measure it
Give crop positions, any samples, the square cross-section and orientation, or the ground and chamfered result. Add measuring methods, locations and damage limits. [3][6][13]
Fix the configuration and plant interfaces
Name the model, wire or wheel, fixture, loading and unloading, and waste handling. Ask for the foundation plan, service access and the cooling, air and power connections. [3][2]
Accept on real stock
Run full loading and cutting cycles with representative stock and measure every position. Agree the build site, spare parts, support and how the machine recovers from a fault. [2][3]
Project fit
Match the offering to your project
Silicon plants choosing cropping and squaring machines against their own ingot or polycrystalline block drawings.
Projects that need fixture, side-material and cooling interfaces agreed before the machine leaves the factory.
Buyers weighing separate cropping and squaring stations against a combined unit ahead of wafer slicing.
Confirm before ordering
- Which TDG NISSIN company signs the contract, and which plant builds each machine.
- Which of the conflicting NWSS-DH02 size entries and NWSS-7S or NWSS-6S end-cut headings applies to your order.
- Current cooling, air and power figures, including the 400 L/min water entry on the NWSS-210 sheet.
- Whether each catalogue model is still offered and its delivery time.
- Current production capacity, the surface-quality limits for your stock and the accepted output you can expect.
Built from the TDG NISSIN company, contact and PV catalogue pages, the linked model sheets, and pages 73 and 141 of TDG Holding's 2019 annual report.
Certificates & approvals
Approvals on file
No factory audit or equipment certificate is on file for this manufacturer yet. Ask for current certificates, with their scope and validity, in your quotation request.
Prepare before contacting
Your Adjustable multiwire monocrystal cropper enquiry checklist
Tick the questions that apply to your project, then take them into your sourcing request. Ticking an item here does not contact the manufacturer.
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Continue to sourcing requestBuyer questions
When was TDG NISSIN founded?
The present company dates from 2014 and took in earlier businesses in 2018. The 1995 date in its history belongs to Shanghai Nissin, a predecessor. [1]
What does the TDG Holding annual report tell a buyer?
The 2019 report lists the company as a consolidated manufacturing subsidiary and explains the group link in that year. For present ownership, capacity and machine performance, ask TDG NISSIN for current documents. [4]
What ingot size does the NWSS-DH02 take?
Its text says 8–12 inch and its table says 6–8.5 inch. Ask for a quotation that states the size range and confirm it with a trial cut. [7]
Can I estimate output from the wire speed?
Wire speed sets the cutting range. Output depends on full cutting and handling cycles, material loss, rejects and recovery, so measure those on your own stock. [3]
Are the Shanghai and Japan offices factories?
The contact page lists Shanghai for marketing and Japan as a contact point, with manufacturing in Haining. Ask which site will build your machine. [2]
Sources
Where this information comes from
The Chinese company name matches the website contact page and the parent filing; ask which entity signs your contract and which site builds the machine.
Company facts come from the publications listed below, each with the date it was checked. The project-fit notes and enquiry checklist are our buying guidance.
- TDG NISSIN company introduction ↗Maker website · Checked Checked 2026-10-11
Company description, predecessor history and site details.
- TDG NISSIN contact page ↗Maker website · Checked Checked 2026-10-11
Haining head office, Shanghai marketing and Japan contact.
- TDG NISSIN PV equipment catalogue ↗Maker website · Checked Checked 2026-10-11
Cropping, squaring and grinding machines for PV silicon.
- TDG Holding 2019 annual report ↗Parent company annual report · Checked Checked 2026-10-11
Pages 73 and 141: subsidiary listing and group relationship in that year.
- NWSS-7S seven-block polycrystal cropper ↗Maker product page · Checked Checked 2026-10-11
Two-table end cropping of seven blocks, with spec sheet.
- NWSS-DS700Z two-station squarer ↗Maker product page · Checked Checked 2026-10-11
Squaring of two mono segments, centring and side removal.
- NWSS-DH02 single-wire cropper ↗Maker product page · Checked Checked 2026-10-11
Mono cropping and sample cuts; text and table sizes differ.
- NWSS-6S six-block polycrystal cropper ↗Maker product page · Checked Checked 2026-10-11
Block end cropping; English heading differs from Chinese text.
- NWSS-210 three-ingot mono cropper ↗Maker product page · Checked Checked 2026-10-11
Multi-head cropping of three ingots and its utility list.
- Monocrystalline bar squarer ↗Maker product page · Checked Checked 2026-10-11
Squaring of mono bars and its sheet.
- NWSS-JK4700 cropping and squaring unit ↗Maker product page · Checked Checked 2026-10-11
Combined mono cropping and squaring.
- G6 multi-wire slurry cutter ↗Maker product page · Checked Checked 2026-10-11
CNC multi-wire cutting with sand-line wire.
- Grinding, rounding and chamfering machine ↗Maker product page · Checked Checked 2026-10-11
Face grinding and corner finishing of mono bars and poly blocks.
- G6 diamond multi-wire mono cutter ↗Maker product page · Checked Checked 2026-10-11
CNC diamond multi-wire cutting of mono stock.
- NWSS-840 multi-wire mono cropper ↗Maker product page · Checked Checked 2026-10-11
CNC diamond multi-wire cropping of mono ingots.
- G5 diamond multi-wire mono cutter ↗Maker product page · Checked Checked 2026-10-11
Diamond multi-wire cutting sized for the G5 format.
- Polycrystalline block sectioning cutter ↗Maker product page · Checked Checked 2026-10-11
Diamond-wire sectioning of polycrystalline bars.
- Polycrystalline tangent-cut wire saw ↗Maker product page · Checked Checked 2026-10-11
Multi-segment diamond tangent cutting of poly rods.
- Twelve-block single-end polycrystal cropper ↗Maker product page · Checked Checked 2026-10-11
One-end cropping of a twelve-block batch.
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