Latest Collimator Specs & Selection Tips

Find the right model in five minutes. Real production specifications, a side-by-side comparison of our current series, and a five-step method to match anX-ray collimator to your tube — so your system passes acceptance testing the first time.

Buying an X-ray collimator is not about matching a part number — it is about matching a beam. The collimator sits between the tube and the patient and decides three things at once: image quality, radiation dose, and whether your system passes acceptance testing. Get one dimension wrong and you get a rejected shipment, a leaking field, or a service call you did not budget for.

This page lists the specifications we actually build today, explains which numbers matter and which are marketing, and shows you exactly what to send us so we can confirm a model by drawing instead of by guesswork.

Which collimator do I need?

1.Mobile / portable / low-power system, up to 125 kV     NK103 series

2.Mobile DR or U-arm, up to 150 kV, needs a very small field   NK-R102NC

3.Radiography up to 150 kV, tightest shielding wanted  NK202X series

4.C-arm, fluoroscopy or R/F, motorized options      NK801 / NK305 / NK301 / NK202SF

Not sure? Send your tube model and kV
We will match it

What to check — and what to avoid
Do this
Compare field size at your SID, not the catalogue SID
Specify kV equal to or above your generator maximum
Ask for the light-field accuracy test report
Request a flange drawing and approve it in writing
Prefer LED light sources for stable brightness and long life
Confirm spare lamp and shutter availability
Avoid this
Buying on price alone — thin lead blades and loose tolerances cause scatter and over-exposure
Assuming flange compatibility between brands
Ordering a 125 kV unit for a 150 kV generator “to save cost”
Accepting a datasheet with no test data behind it
Ignoring weight and length on mobile arms and light tube stands
Skipping the drawing approval step to save a day
Send us these six details and we can quote accurately
Most quotation delays are caused by missing technical information, not by pricing. If you send the six items below, we can confirm a model, a flange and a delivery date in a single reply.

 Information needed Example
1 Tube brand and model Toshiba / Varian / IAE / your own model
2 Maximum tube voltage 125 kV / 150 kV
3 System type Mobile DR, U-arm, fixed radiography, C-arm, R/F, dental
4 Required max field and SID 430 × 430 mm at 100 cm
5 Flange type or a photo of the tube port Photo attached
6 Quantity, destination country and target date 20 pcs to Germany, within 6 weeks

Frequently asked questions
A.How do I choose the right X-ray collimator?
Match four things: the kV rating must equal or exceed your generator maximum; the light field must cover your largest field at your longest SID; the mounting flange must fit your tube housing; and the drive type must suit your workflow. Confirm these four points before you compare price.
B.Is a collimator the same as a grid?
No. A collimator shapes the beam at the tube and defines the field before the patient. An anti-scatter grid absorbs scattered radiation near the detector. They solve different problems, and most modern systems use both.
C.Manual or motorized — which should I buy?
Choose motorized for busy fixed DR departments where consistent field sizing and throughput matter. Choose manual for cost-sensitive, low-volume, mobile, veterinary and U-arm installations where simplicity and a low failure rate are worth more than automation.
D.What is the typical MOQ and lead time?
Standard configurations usually ship in 15–30 days depending on configuration and quantity. Small trial orders are accepted for a first cooperation, and third-party inspection before delivery is supported.
E.What documents should I request before ordering?
Ask for the light-field accuracy test report, leakage radiation and lead-equivalent data, the flange dimensional drawing, and any certification your market requires. Never accept a datasheet without the test report that supports it.

Author:Glinda