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Visionstar SJD-321

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Visionstar Dental And Oral Care Equipment

Visionstar SJD-321

Product Code: DAOC-DI-2737

Bring the beam to the chair they arrived in.

The beam travels; the patient stays put. The Visionstar SJD-321 pairs a full-colour screen with 60 or 70 kV, four milliamp steps and 0.1–2 s timing, at 1.7 kg.

Sections

Intraoral X-ray Units

Categories

Dental And Oral Care Equipment

Condition

New

Origin

China

Seller Type

Certified Professional Seller

Size:

145 × 145 × 140 mm

CE & ISO Certified

Global Shipping

Supplier: Medigear

The Visionstar SJD-321 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.

Patient access is the practical case for a carried generator. A wheelchair user can be radiographed where they sit; a patient with limited mobility, painful joints or a spinal condition does not have to be moved to have a periapical taken. Service providers in the UK are required to make reasonable adjustments for disabled people under the Equality Act 2010, and equipment that removes a transfer from the pathway contributes directly to that.

The exposure range does work of its own here. A timing floor of 0.1 seconds shortens the period a receptor has to be held in position, which is the specific difficulty for patients with a strong gag reflex — the tolerance problem is about duration as much as placement. Shorter exposures also narrow the window in which an anxious or restless patient can move enough to blur an image and force a repeat.

The control face carries a full colour screen, separating machine state, kilovoltage, current and timing into distinct fields so all four are confirmed in one glance before triggering.

Published dimensions are 145 × 145 × 140 mm at 1.7 kg. 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-321 across the United Kingdom.

Intraoral radiography carries the diagnostic load in UK general dentistry, and the SJD-321 is configured for that daily volume. It supports bitewing caries detection, periapical assessment of pathology, endodontic length verification, alveolar bone-level review and root morphology assessment ahead of extraction.

Access is the distinguishing application. Wheelchair users, patients with limited mobility, painful joints, spinal conditions or profound frailty can be radiographed where they sit, which removes a transfer from the appointment. UK service providers must make reasonable adjustments for disabled people under the Equality Act 2010, and equipment that takes a transfer out of the pathway contributes to that obligation in a concrete way. Special care dentistry, community dental services and domiciliary rounds all work with this population daily.

Gag reflex management is a second fit, with a specific mechanism behind it. Gagging is provoked by receptor contact in the posterior palate and floor of mouth, and tolerance depends partly on how long the receptor stays there. A 0.1-second timing floor keeps the exposure brief and shortens the episode, though placement technique, receptor selection, positioning and distraction remain the substantial part of managing it.

Anxious patients benefit for a related reason. A movement-blurred image means a repeat, and a repeat is often precisely what an anxious patient fears, so a short exposure works in their favour. Behavioural and communication techniques remain what actually manages dental anxiety.

None of this alters radiation protection. Operator position, distance and shielding are set by the Radiation Protection Adviser's assessment, and local rules should already state who provides physical support during an exposure and under what protection.

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.

A transfer removed from the pathway

A patient can be radiographed in the wheelchair they arrived in. For someone with painful joints, a spinal condition or profound frailty, avoiding a transfer is the difference between a straightforward appointment and a difficult one.

Concrete support for reasonable adjustments

Service providers must make reasonable adjustments for disabled people under the Equality Act 2010. Equipment that reaches the patient gives a practice something specific to point to when it documents how it meets that duty.

Exposure brief enough to shorten the episode

A 0.1 second timing floor keeps the exposure itself short, which matters where a receptor is difficult to tolerate and where the length of the moment is part of the problem.

Fewer movement repeats

Short exposures narrow the window in which a restless or anxious patient can blur an image, and a repeat avoided is both a dose saved and an ordeal not repeated.

Four fields confirmed in one glance

A full colour screen separates machine state, kilovoltage, current and timing into distinct fields, so all four are checked before triggering with the unit already positioned.

An exposure envelope that spans the view set

Two kilovoltage settings and four milliamp steps let a protocol reach from paediatric anterior views up to molar bitewings on a large adult, with values agreed by your MPE and recorded as local diagnostic reference levels.

Sized for the case and the drawer.

A 145 × 145 × 140 mm body packs squarely for a domiciliary round and stows in a lockable drawer between sessions, helping discharge the physical security duty IRR17 places on the employer.

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-321 across the United Kingdom, including requesting the manufacturer's focus-to-skin, cone, filtration and battery documentation.

Full-colour screen

A colour panel presents machine state, kilovoltage, current and timing as separate fields on one reading face.

0.1-second timing floor

The lower limit of the exposure range keeps the exposure brief, which shortens the period a receptor has to be held in position.

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 range

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.

145 × 145 × 140 mm body

Published dimensions give a near-square body, suited to lockable drawer storage and to packing squarely in a transport case.

Membrane control keypad

A sealed key array gives positive tactile feedback under gloves and presents a flat, wipeable control face for routine decontamination.

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 across the housing supports single-hand carrying and steadier beam alignment while the exposure is taken.

The Visionstar SJD-321 gives UK dental teams a 1.7 kg battery-powered X-ray generator in a 145 × 145 × 140 mm body, built around a full-colour screen, 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 special care dentistry, community dental services and domiciliary rounds, practices serving wheelchair users and patients with limited mobility, and NHS and private general practice managing gag reflex and dental anxiety alongside routine work. 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 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.

That is one of the clearest arguments for a carried unit — the beam comes to the patient, so a transfer is removed from the pathway. Two practical points remain. Head position and support still have to be adequate for the projection, and not every wheelchair provides that, so a headrest or an assistant's support may be needed. And the operator's position during the exposure is governed by your Radiation Protection Adviser's assessment, which does not relax because the patient is seated differently. Plan both with your RPA before the first appointment.

It helps with one part of the problem. Gagging is provoked by receptor contact in the posterior palate and floor of mouth, and tolerance is partly a question of how long the receptor has to stay there. A 0.1-second timing floor keeps the exposure itself brief, which shortens the whole episode. Placement technique, receptor size and choice, patient positioning and distraction remain the substantial part of managing it — the machine shortens the moment rather than solving the reflex.

Shorter exposures reduce the chance of a movement-blurred image and the repeat that follows, which matters when a repeat is the thing an anxious patient dreads. A carried unit also means less equipment being manoeuvred around the patient's head. Neither replaces the behavioural and communication techniques that actually manage dental anxiety, and each exposure is justified individually under IR(ME)R 2017 regardless of how difficult the patient finds it.

Yes. Operator position, distance and any backscatter shielding requirement are set by your Radiation Protection Adviser's assessment of your equipment and setting, and none of that changes because a patient is being radiographed in a wheelchair or needs reassurance. Where a clinician judges that a patient requires physical support during the exposure, your local rules should already set out who provides it and under what protection.

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.

Focus is specified at order as 0.4 mm or 0.8 mm. Focus size governs geometric unsharpness at the receptor, so the choice interacts with your working distance, receptor type and the detail level clinicians need. Discuss it with your Medical Physics Expert alongside your intended exposure protocols, and confirm the selection in writing on the order.

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. Request it at quotation along with spare pack availability and pricing, particularly where domiciliary rounds or long special care sessions are planned.

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. UK service providers commonly apply an annual radiological testing interval to hand-carried units, and your Radiation Protection Adviser sets the 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 — confirm at quotation.