How to choose a supplier of replacement injector needles: nine questions to ask before you order
To choose a supplier of replacement injector needles, ask nine questions in writing: who makes the needle, whose design it is, how compatibility is stated, which steel, how the tip and head joint are made, what the inside surface is, which fitting it takes, what can be adapted and how the first order is checked. A manufacturer can answer all nine with facts.
A buyer in a meat, poultry or fish plant starts looking for a supplier when a needle head is due for new needles, and has to find out who makes replacement needles for that injector and where to order them. Supplier websites describe their needles in similar words, so we suggest sending the nine questions below to every supplier on your list.
Why the supplier comes before the needle
A delivered needle can only be measured after the order is placed, so the supplier is checked first. We are ZUST Needles, an independent manufacturer of replacement injector needles for meat, poultry and fish processing, established in 1998. Our customers include OEM companies, spare parts suppliers and processing plants, and we supply them directly. The needle-level criteria are in our guide to OEM and aftermarket injector needles.
Nine questions for a supplier of replacement injector needles
1. Who actually makes the needle?
Ask whether the supplier makes the needle or buys it in. All our products are originally manufactured by our company. When you contact us, we either prepare the quotation ourselves or forward your contact details to our local reseller.
2. Whose design is it?
Using compatible spare parts from an independent manufacturer is normal industrial practice, provided the parts are that manufacturer’s own design. We make our needles to our own designs.
3. How does the supplier state compatibility?
Ask for compatibility in the supplier’s own terms: a product code and the machine series it suits. Product codes shown on this website are ZUST Needles’ own product references unless expressly stated otherwise. FOM needles suitable for Fomaco FGM injectors and SCH needles suitable for Schroder IMAX injectors are two examples, and each brand page lists the models we supply. We design and manufacture every needle ourselves and are not an agent of any of these companies. If an offer lists only a machine maker’s part number, ask what the supplier itself makes.
4. Which steel, and what is added to it?
Ask for the steel as a range with an explanation. We use the highest quality type of stainless steel (AISI 304-316), often with added titanium or other elements that improve durability. A single grade number says less than buyers expect; see what matters more than the steel grade.
5. How are the tip and the head joint made?
Ask about the tip first and the joint under the head second; where a needle breaks is explained in broken injector needle: detection procedure. All our round tips are forged, which makes tip and tube one piece. Where welding is not possible, underneath the head, we use silver soldering, which strengthens the connection and keeps brine out of an area that cannot be cleaned. We build our needles for the highest possible resistance to breaking.
6. What does the inside of the tube look like?
Ask whether the bore is finished as carefully as the outside. We electropolish our needles inside and out, and we grind and polish them to prevent burrs.
7. Which fitting does the needle take?
Each injector manufacturer uses their own type of needle fitting. It is very important information in order to offer a needle that will fit the machine.
Give the supplier your machine brand and series, and expect the fit to be confirmed before you order. We fit o-rings as standard wherever the needle design requires one.
8. What can be adapted, and does it cost extra?
Ask which parameters the supplier can change: outer diameter, wall thickness, tip type, and the number, diameter and placement of the holes. We make outer diameters from 1.6 mm to 6 mm, and the wall thickness decides the internal diameter and with it the yield. We charge no design fee for an individual design and set no minimum order quantity.
9. How will the first order be checked?
Ask what the supplier checks at each stage of production and how you can test a modified specification. In our production the needles are checked from drilling and forging onwards, and the last check comes at packing: we aim for the person packing to look over each needle once more and pick out the best ones. With no minimum order quantity, a changed hole pattern or wall thickness can be tried on a single set and compared with the set it replaces, as in our needle wear audit.
The nine questions at a glance
| Question | A manufacturer can say | Ask again if |
|---|---|---|
| 1. Who makes it? | Its own production, or its reseller | Only a brand name is given |
| 2. Whose design? | Its own design | The origin of the design is not stated |
| 3. Compatibility? | Own code plus machine series | Only a machine maker’s part number appears |
| 4. Steel? | A range and what is added | A grade number with no explanation |
| 5. Tip and joint? | How both are made | The tip is simply called “strong” |
| 6. Inside surface? | How the bore is finished | Only the outside is mentioned |
| 7. Fitting? | Fit confirmed for your machine series | Fit is promised for “all injectors” |
| 8. Adaptation? | Which parameters change, and at what cost | Every change is quoted as a new product |
| 9. First order? | What is checked at each stage, and a one-set trial | Only a large first order is offered |
Key takeaways
- A manufacturer says whose design the needle is and states compatibility by its own code and the machine series.
- Fitting is confirmed per machine series before the order.
Frequently asked questions
Who manufactures replacement needles for meat brine injectors?
Machine builders and independent needle makers both supply them. ZUST Needles is an independent manufacturer, established in 1998, and we make replacement injector needles to our own designs for meat, poultry and fish processing.
Where can I buy stainless steel needles compatible with different injector brands?
From a supplier that states compatibility by its own product code and machine series. Our brand pages list the codes, from FOM needles suitable for Fomaco FGM injectors to METQ needles suitable for Metalquimia Movistick and Moviplus injectors. We are not an agent of any of these machine manufacturers.
Can I order a needle that differs from the catalog?
Yes. We adapt the outer diameter, wall thickness, tip type and holes to your product and brine, with no design fee for an individual design.
Sending the questions to us
Put the nine questions in your inquiry on our contact page, with your machine brand and series. The codes for each machine series are on our brand pages: FOM Needles, SCH Needles and METQ Needles.