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Visionstar SJD-251

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Visionstar Dental And Oral Care Equipment

Visionstar SJD-251

Product Code: DAOC-DI-2733

Teach the tilt with a number, not a guess.

A technique you can put a number on. The Visionstar SJD-251 shows tilt on a large touch panel, runs at 60 or 70 kV, with four milliamp steps and 0.1–2 s timing, in a 1.7 kg body.

Sections

Intraoral X-ray Units

Categories

Dental And Oral Care Equipment

Condition

New

Origin

China

Seller Type

Certified Professional Seller

Size:

110 × 150 × 220 mm

CE & ISO Certified

Global Shipping

Supplier: Medigear

The Visionstar SJD-251 is a battery-powered dental X-ray generator for intraoral radiography at the point of care. The generator runs at 30 kHz, with tube voltage selectable at 60 or 70 kV, tube current selectable across 1.5, 2.0, 2.5 and 3.0 mA, and exposure timing from 0.1 to 2 seconds. Tube focus is specified at order as 0.4 mm or 0.8 mm.

The distinguishing feature is the tilt display carried on the large touch panel. The unit reports the orientation of the tube head on screen while it is being held, which puts a number on something that has traditionally been taught by eye and corrected after the fact.

That has a particular value in teaching. Positioning is the hardest part of intraoral radiography to pass on, and the usual feedback loop is retrospective — the trainee takes the view, the image comes back foreshortened, and the trainer explains what went wrong using words like "steeper" and "a bit more". An on-screen figure changes the conversation into something both people can see at the moment it matters, and it turns a correction into a recordable quantity.

One boundary needs stating clearly. The readout describes the tube head's own orientation. It does not describe the relationship between the beam, the tooth and the receptor, which is what actually determines whether a view is correctly angulated. Receptor placement and paralleling technique with a beam-aiming holder remain the means of controlling that relationship. The tilt figure supports technique; it does not substitute for it.

The housing is shaped to sit in the palm, with the flat control face to the rear and a tapered nose forward. At 220 mm deep, the emitting end stands away from the hand while the mass stays close to the wrist.

Published distance from skin to cone is 130 mm — raise that with your Radiation Protection Adviser during specification, since UK dental guidance sets minimum focus-to-skin distances that differ above 60 kV, and this unit offers a 70 kV setting. Power comes from a DC 14.8 V 1600 mAh lithium pack, charged from AC 100–240 V with a DC 16.8 V output, rated at 100–300 VA. Medigear.uk can arrange supply, delivery, commissioning, staff familiarisation and service cover for the SJD-251 across the United Kingdom.

Intraoral radiography carries the diagnostic load in UK general dentistry, and the SJD-251 is configured for that daily volume. It supports bitewing caries detection, periapical assessment of pathology, endodontic working-length and obturation verification, alveolar bone-level review, and root morphology assessment ahead of extraction.

Teaching and training settings are the clearest fit. Dental schools, foundation training practices, community dental services and corporate groups all bring operators through supervised radiographic practice — foundation dentists, new associates, therapists and dental nurses working towards a radiography certificate. Positioning is the part of that training with the weakest feedback loop, and an objective tilt figure gives the trainer and trainee a shared reference during the exposure instead of afterwards.

Multi-operator practices benefit for a related reason. Where several clinicians and nurses share one unit, technique drifts, and image quality audits become hard to attribute. A common numeric reference gives the team something concrete to discuss when audit findings point at angulation.

Reproducibility work applies throughout general practice. Returning to a known geometry for a review radiograph, or shifting the tube by a measured amount for a second localisation view during orthodontic assessment, both become measured actions.

Community dental services and special care teams need equipment one clinician can carry. At 1.7 kg, the unit travels easily, though the modest published battery capacity, alongside the standby draw of a large backlit panel, makes spare pack availability worth settling before a domiciliary round or a training session, with off-site radiation protection arrangements agreed with the RPA in advance.

Guidance from the College of General Dentistry and UKHSA Dental X-ray Protection Services remains the reference point UK practices work to, alongside HSE enforcement of IRR17.

Feedback at the moment it matters

Positioning has traditionally been corrected after the image comes back. An on-screen tilt figure gives trainer and trainee a shared reference during the exposure, which is when a correction is easiest to act on.

Observations that become records

A numeric value converts a subjective note into something that can be written into a training log and revisited. Competency sign-off is easier to evidence when the observation was quantitative.

A common reference across a shared team

Where several operators use one unit, a recorded tilt value gives the team something concrete to discuss when an image quality audit points at angulation.

Known geometry, repeated on purpose

Returning to an earlier position for a review radiograph, or shifting by a measured amount for a second localisation view, both become measured actions.

An exposure envelope that spans the view set

Two kilovoltage settings, four milliamp steps and a twenty-fold timing range let a protocol reach from paediatric anterior views up to molar bitewings on a large adult, with values agreed by your MPE.

Mass at the wrist, beam well forward

A rounded palm-held body with a 220 mm depth keeps the weight close to the wrist while the emitting end stands away from it, supporting a steady hold through the exposure.

Calibration scoped before order

A readout used in teaching and record-keeping becomes a service item. Medigear.uk can arrange for the manufacturer's stated accuracy, calibration method and check interval to be requested with your quotation.

UK supply, commissioning and service through one route

Medigear.uk can arrange listing, supply, delivery, installation, commissioning, staff familiarisation, service cover, planned maintenance and quotations for the SJD-251 across the United Kingdom, with site survey support where a practice wants the radiation protection conversation scoped before order.

On-screen tilt display

The unit reports tube head orientation on the control panel during positioning, giving a readable and recordable figure.

Large touch panel

A touch-operated screen forms the control face, presenting settings, machine state and the tilt figure together on one surface.

Selectable tube voltage at 60 or 70 kV

Two kilovoltage settings support protocols that vary by region, patient build and the greyscale range a view requires.

Selectable tube current across four steps

Tube current is offered at 1.5, 2.0, 2.5 and 3.0 mA, giving a second exposure variable alongside kilovoltage and time.

0.1–2 second exposure timing

A twenty-fold span reaches direct digital sensors at the short end and phosphor storage plate or film technique at the upper limit.

Tube focus at 0.4 mm or 0.8 mm

Focus size is specified at order, one of the figures governing geometric sharpness at the receptor alongside working distance and receptor type.

30 kHz generator

High-frequency drive produces a steady output waveform through the exposure, supporting repeatable receptor density from one radiograph to the next.

130 mm published skin-to-cone distance

The manufacturer publishes a skin-to-cone figure; confirm with the manufacturer whether this is the focus-to-skin distance and which kilovoltage settings the supplied cone supports, and have your RPA review it.

Palm-held rounded housing

The body is shaped to sit in the palm, with the flat control face to the rear and a tapered nose forward of the hand.

220 mm housing depth

Published depth places the emitting end well forward of the operator's hand while the mass stays close to the wrist.

Ready and exposure indicators

Illuminated status markers signal machine state through the exposure cycle, giving visual confirmation at each stage.

Side-mounted exposure release

The exposure control sits on the side of the housing, within reach of the carrying hand while the head is held in position.

DC 14.8 V 1600 mAh lithium battery

An integrated lithium pack powers the unit away from a fixed power position, charged from AC 100–240 V with a DC 16.8 V output and a 100–300 VA rating.

Moulded hand strap

An integrated strap supports single-hand carrying and steadier beam alignment while the exposure is taken.

The Visionstar SJD-251 gives UK dental teams a 1.7 kg battery-powered X-ray generator built around a large touch panel with an on-screen tilt display, selectable 60 or 70 kV tube voltage, four selectable milliamp steps, a 0.1–2 second exposure range, tube focus at 0.4 mm or 0.8 mm, 30 kHz generator drive and a DC 14.8 V lithium pack. It fits dental schools and foundation training practices, teaching clinics, multi-operator and corporate groups, NHS and private general practice, paediatric and special care dentistry, community dental services and outreach programmes. Medigear.uk can arrange supply, delivery, commissioning, staff familiarisation, service cover and planned maintenance across the United Kingdom, and can arrange for the manufacturer's tilt display accuracy and calibration data, focus-to-skin distance, cone, filtration and battery documentation to accompany your quotation for your Radiation Protection Adviser's review. Contact the Medigear.uk team for pricing, lead times, tube focus selection and configuration enquiries.

FAQ

Frequently Asked Questions

Everything buyers need to know about sourcing medical equipment through MediGear.

It reports the orientation of the tube head while the unit is held in position. It does not measure the angle between the beam and the receptor, which is the relationship that determines whether a view is correctly angulated. Read it as an objective description of what the operator's hand is doing, which is precisely what makes it useful for teaching and for repeating a known position.

No, and it should not be specified on that basis. A receptor holder with a beam-aiming device fixes the relationship between beam, receptor and tooth, and paralleling technique remains the standard approach for reproducible intraoral geometry. The tilt figure sits alongside them, giving a recordable number for the head's orientation. Continue to use holders and to train operators properly in their use.

It can contribute usefully. IR(ME)R 2017 requires operators to be adequately trained for the tasks they perform, with records kept by the employer — a broad population in UK practice, covering foundation dentists, new associates, therapists and dental nurses working towards a radiography certificate. A numeric tilt value lets an observation during supervised practice be recorded as a figure, which makes progress across sessions easier to demonstrate and competency sign-off easier to evidence. The training programme itself remains a matter for the practice and its Medical Physics Expert.

Yes. Any situation where a known position needs repeating benefits — returning to the same geometry for a review radiograph, or shifting the tube by a measured amount for a second localisation view. Practices where several operators share one unit also gain a common reference point for discussing technique.

Ask the manufacturer for the tilt display's stated accuracy, its calibration method and the interval at which calibration should be checked. A readout used in teaching and record-keeping becomes a service item, so your engineer needs to know how it is verified, and your Radiation Protection Adviser will want it noted in the equipment record. Medigear.uk can arrange for that documentation to be requested with your quotation.

Raise this before order. UK dental guidance sets minimum focus-to-skin distances for intraoral equipment, and the required figure steps up for sets operating above 60 kV — commonly expressed as 100 mm at 60 kV and below, and 200 mm above 60 kV. This unit offers a 70 kV setting and publishes a 130 mm skin-to-cone figure. Ask the manufacturer to confirm whether that is the focus-to-skin distance or a cone measurement, whether a longer cone is available, and which kilovoltage settings the supplied cone supports. Have your Radiation Protection Adviser resolve it before the unit goes into service.

The pack is a DC 14.8 V 1600 mAh lithium unit, charged from AC 100–240 V with a DC 16.8 V output, so it runs on UK mains directly. The manufacturer does not publish an exposures-per-charge figure, and a large backlit panel carries its own standby draw, so ask for the figure directly — supervised training sessions consume exposures quickly. Request it at quotation along with spare pack availability.

The Ionising Radiations Regulations 2017 require employers carrying out dental X-ray work to register with the Health and Safety Executive, appoint a Radiation Protection Adviser, nominate a Radiation Protection Supervisor and complete a radiation risk assessment. The Ionising Radiation (Medical Exposure) Regulations 2017 add the appointment of a Medical Physics Expert, justification and optimisation of each exposure, and documented training for referrers, practitioners and operators. A critical examination is required when the equipment is put into service.

Dental X-ray equipment is subject to routine quality assurance and periodic radiological testing under IRR17, alongside annual electro-mechanical inspection, with a critical examination required at installation. The tilt display's calibration should be added to that schedule. Warranty terms are set and issued by the seller or manufacturer, typically 12–24 months, with battery packs often warranted on a shorter cycle and screen assemblies sometimes covered separately — confirm at quotation.