TW01-80 Astronomical Refractor Telescope Manufacturer & Supplier
70mm aperture, K9 eyepiece, 300mm focal length, 50x standard up to 75x with 3x intensifier, 5x24 finder.
Overview
Designed and manufactured by Hemusun Optronics — the TW01-80 Astronomical Refractor Telescope builds on our in-house grinding, coating and assembly lines, the same capability behind 5,000+ optical component programs.







70mm aperture, K9 eyepiece, 300mm focal length, 50x standard up to 75x with 3x intensifier, 5x24 finder.
Key Specifications
| Parameter | Value |
|---|---|
| Aperture | 70 mm |
| Focal length | 300 mm |
| Standard magnification | 50x (up to 75x) |
| Finder | 5x24 |
| Weight | 2.6 kg |
| Full specification sheet | Complete datasheet, coating stack and QC plan available on request — contact the factory |
Full specification sheets are provided per program; specifications subject to improvement without notice. Contact the factory for the current datasheet.
Technical & Program Guide
What This Model Is For
Astronomy kits sell on a promise: the first clear view of Saturn's rings or the moon's terminator. This platform exists to make that promise honestly at its price point — usable magnification, stable mount, and an optical path that performs as shipped, not as assembled by an enthusiastic first-timer.
How to Evaluate It Before Committing
Assemble it as a customer would, from the box, once. Every step that frustrates becomes a return. Then check the finder alignment, the focus collimation at high power, and the mount's ability to hold against a light breeze. Retail astronomy is won at the unboxing and lost at the first wobble.
Program Fit and Margins
Astronomy is the seasonal margin category: holiday retail, summer camps, school STEM procurement. Pre-season production slots go early; programs that forecast by March own the December shelf.
Who actually uses the TW01-80 — and how that shapes the shelf
Astronomy is the category where the purchase and the experience are furthest apart — the buyer at the box is often not the user, and the user's first ten minutes decide the product's public reputation. The TW01-80 Astronomical Refractor Telescope is built for that reality. The gift pool (parents, grandparents, gift-givers) reads for age ranges and ease-of-setup claims and buys the promise of Saturn's rings; they return units whose first setup frustrates, which is why unboxing design — counted parts, photo instructions, pre-aligned optics — is a returns budget line, not a nicety.
The club-and-outreach pool (astronomy clubs, schools, planetarium summer programs) buys institutional multiples of portable, fast-to-deploy instruments and the eyepiece/accessory ring that keeps a fleet useful for years; for them the TW01-80 competes on mount robustness and parts availability more than peak magnification. The hobbyist upgrader buys the eyepiece and filter upgrades around existing tubes — the APO zoom and filter lines that make the second and third order routine.
Because astronomy demand stacks onto the holiday calendar, the true program constraint is production slots, not annual capacity: forecast in the early cycle and the December shelf holds; forecast late and air freight eats the margin. That calendar logic is also why astronomy private-label programs pair the tube platforms with the accessory ring — accessories sell through the slow months and keep the brand on the shelf after the gift season empties.
Making TW01-80 Yours
TW01-80 Astronomical Refractor Telescope is offered on a platform-first program: the optical and mechanical core is in production, and your engagement customizes what surrounds it. The typical option set at this class covers housing and armor finish, badge and panel engraving, the coating tier where the optical design allows it, reticle or firmware behavior on electronic platforms, kit contents (straps, cases, cloth, adapters) and retail packaging at card, box or bulk tiers. None of those choices require new tooling, which is why a differentiated private-label SKU can reach your shelf inside a single buying season rather than two.
Sampling runs in three gates. Gate one is a stock sample of TW01-80 for field evaluation — run it through your own use, not a showroom demo, and note what surprises you. Gate two is a branding sample carrying your artwork: the factory's handling of your badge, fonts and box at this stage is a reliable trailer for production discipline. Gate three is a pre-production lot with the QC checkpoints your QA team defines in writing — test records, collimation or full-function checks per unit, packing verification against the drop standard your market expects. Each gate has a written pass before the next opens; this gate structure is how programs avoid the expensive surprise at container inspection.
Commercial terms follow the factory standard: tiered pricing by quantity band, a deposit at order with the balance against shipping documents, and a spare-parts list naming every consumable and wear item on this platform with its availability horizon. Programs that commit forecasts hold production slots and inventory tranches — the mechanism that survives peak season, when slot-less orders queue behind everyone else's. Tell us the destination market and your broker receives a compliant document set: commercial invoice and packing list, plus laser classification, battery transport declarations or labeling documentation where the model carries those regulated components. One more practical note from the field: distributors who order the accessory ring beside the instrument — straps, cases, adapters for this class — consistently report double the category basket per selling location, so quote the platform and its accessories together, not the device alone.
Sampling, Lead Time and Logistics
Stock-platform samples ship in a few days by express; badge-custom samples take one to two weeks with your artwork. Production for customized programs runs four to six weeks from spec lock; tooled programs are scheduled per project. Export paperwork (commercial set, laser class or battery documentation where applicable) is prepared with each shipment, and we work to your Incoterms and broker requirements.
Payment structure is standard for manufacturing: a deposit at order and the balance against shipping documents. Programs with forecast commitments can hold production slots and inventory tranches — the mechanism that survives peak season, when slot-less orders queue behind everyone else's.
Field Use
Rotate the left and right body of the laser ranging telescope, and at the same time, the left and right eyes observe the target through the left and right eyeglasses of the telescope until the left and right eyes observe a circular image. Observe the distant target with the left and right eyes, and rotate the left and right eyeglasses until the target is the clearest. If you wear glasses and use a laser range finder, you can unscrew the left and right eyepiece rubber goggles and observe.
Questions about this platform?
Send your market and target price — we will confirm fit, options and tiered pricing.
Request a Quote WhatsAppFrequently Asked Questions
Is the TW01-80 a stock platform?
Yes — TW01-80 Astronomical Refractor Telescope is an in-production platform. Stock samples are available before program commitment, and badge/custom runs of TW01-80 follow the standard four-to-six-week customization lead time.
What customization is available on this model?
Housing color and finish, badge and engraving, coating and reticle options where the platform supports them, plus kit composition and packaging. Ask for the platform's option sheet — it lists what is a decal decision, what is a tooling decision, and what is a firmware decision.
What does the datasheet include?
Full optical and mechanical parameters, coating specification, test records (waterproof/purge on sealed models, collimation per unit), packing list and the tiered price sheet for your quantity band.
What accessories matter most in astronomy retail?
Eyepieces (a good zoom covers the band), phone adapters, filters, diagonals and carry solutions. Accessory pull is the repeat-order engine of astronomy categories.
Tell us the market. We will spec the optics.
Platforms, price tiers, MOQ and samples — an answer from the factory within one business day.