Semsons Tech
In stock
The smallest tip in the range. Nozzle 502 picks 0.8–0.9 mm rounds — the micro-pavé sizes that are hardest to automate — and pairs with the DSSMT-01 and DSSMT-01L trays (tray nos. 08-09). A consumable wear part: when your skip rate starts climbing on a tray that used to run clean, this is usually what changed. Stocked, same-day dispatch from Mumbai and Rajkot.
Talk to our team about specifications, a demo, or installation.
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The 502 is the finest nozzle Semsons makes, and it does the hardest job on the machine: lifting a 0.8 mm diamond, holding it through travel, and releasing it into wax at the exact moment the head arrives. At that size the stone weighs almost nothing and the vacuum seal is everything — which is why the tip aperture and sealing sleeve on this nozzle are machined to a tighter specification than anything above it in the range.
Micro-pavé is where automation pays best and fails worst. A floor setting 0.8 mm stones by hand is burning skilled labour on work that punishes fatigue; a floor setting them by machine on a tired nozzle is producing wax models with invisible gaps. The 502 is a cheap part standing between those two outcomes, which is the entire argument for keeping a spare in the drawer.
| Parameter | Specification |
|---|---|
| Product Code | SSMN-01 |
| Nozzle Designation | 502 |
| Diamond Size Range | 0.8 mm – 0.9 mm round stones |
| Construction | Precision-machined steel tip with rubber sealing sleeve on a stainless shaft |
| Pickup Method | Vacuum suction through the tip aperture |
| Pairs With Tray | DSSMT-01 / DSSMT-01L — the 0.8-0.9 mm tray zone (tray numbers 08-09) |
| Wear Class | Consumable wear item — replace when pickup consistency drops |
| Compatible Machines | Semsons Tech Mini Pro, Pro Series, Pro Plus and Double Head 8 Nozzle wax setting machines |
| Sold As | Individual nozzle (single unit) |
| Position in Family | Smallest tip diameter in the standard nozzle ladder |
| Dispatch | Same-day from our Mumbai & Rajkot warehouses |
Every nozzle covers one stone band and pairs with a specific tray. Find your stone size below and you have both. This nozzle is highlighted.
| Code | Nozzle | Stone Size | Pairs With Tray |
|---|---|---|---|
| SSMN-01 | 502 | 0.8 – 0.9 mm | DSSMT-01 / DSSMT-01L (tray nos. 08-09) ◀ this product |
| SSMN-02 | 502B | 1.0 – 1.2 mm | DSSMT-01 / DSSMT-01L (tray nos. 10-11-12) |
| SSMN-03 | 503 | 1.3 – 1.4 mm | DSSMT-02 / SSMWT-02 (tray nos. 13-14) |
| SSMN-04 | 503B | 1.5 – 1.9 mm | DSSMT-02 & DSSMT-03 / SSMWT-02 & SSMWT-03 |
| SSMN-05 | 504 | 2.0 – 3.0 mm | DSSMT-04 & DSSMT-05 / SSMWT-04 & SSMWT-05 |
Note that 502 and 502B both feed from the DSSMT-01 / DSSMT-01L tray — the 502 takes the 08-09 zone, the 502B takes 10-11-12. Most floors running micro-pavé stock both.
A nozzle is the fastest-wearing part on a stone setting machine, and it rarely fails outright — it degrades. The tip aperture dulls, the sealing sleeve hardens, and your skip rate climbs a little each week until somebody finally notices that the wax models are coming off the bed with gaps in them. Watch for these:
At 0.8 mm there is no margin to absorb a worn tip, so this nozzle shows its age earlier than the larger ones in the range. If you run micro-pavé in volume, treat the 502 as a stocked consumable and change it on symptom rather than waiting for a bad batch to tell you.
Your skip rate tells you before anything else does. When a machine that used to run a full tray clean starts leaving occasional empty positions in the wax — and the tray, the air pressure and the stone size have not changed — the nozzle tip is what changed. Under a loupe you will usually see a dulled or slightly belled tip aperture, or a sealing sleeve that has hardened and stopped sealing.
Honestly, it depends on your hours, your stones and your air quality, so any number we quoted would be a guess dressed up as a spec. What we can tell you is what to watch: rising skip rate, inconsistent pickup on one head of a multi-head machine, and visible tip wear. Floors running continuous shifts treat nozzles as a stocked consumable, not a repair part.
Only within its published band. The tip aperture is sized to seal against a specific stone diameter — too small and it will not lift, too large and it loses vacuum around the girdle and drops the stone mid-travel. The ladder above shows exactly which band each nozzle covers.
On a multi-nozzle head, replacing them as a set keeps pickup consistent across positions — one fresh nozzle beside three worn ones just makes the worn ones obvious. If you are replacing one because it failed early, that is fine; if you are replacing on wear, do the set.
They are stocked. Nozzles ship same-day from our Mumbai and Rajkot warehouses because a nozzle you are waiting on is a machine that is not running. Keep a spare set on the shelf and you never make that call.
The SSMN-01 (502) ships same-day from our Mumbai and Rajkot warehouses, across India and to the 34+ countries we export to. Buying a full set across all five stone bands, or stocking spares for a multi-machine floor? Ask for set pricing rather than ordering them one at a time — and tell us how many nozzle positions your machine has so we send the right count.
Semsons Tech has supplied the Indian jewellery trade since 1978, with 16+ stores and warehouses, 450+ dealers and 40+ distributors behind every consumable we sell.
Not sure which part fits your machine? Send us your machine model and the stone size you are running, and we will confirm the correct item before we dispatch — so you never pay to find out it was the wrong one.
Sales: WhatsApp +91 98216 12340 | Wholesale & bulk orders: WhatsApp +91 80823 38010
Semsons Tech — Where Quality Speaks For Us. Since 1978.
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