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Visionstar SJD-C09

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Visionstar Dental And Oral Care Equipment

Visionstar SJD-C09

Product Code: DAOC-DI-2959

A finer focus costs you milliamps. Weigh that trade carefully.

Two focus options and two very different exposure regimes. The Visionstar SJD-C09 runs at 60 kV and 8 mA with 2.5 mm Al filtration on a column stand.

Sections

Intraoral X-ray Units

Categories

Dental And Oral Care Equipment

Condition

New

Origin

China

Seller Type

Certified Professional Seller

CE & ISO Certified

Global Shipping

Supplier: Medigear

The Visionstar SJD-C09 is a column-mounted dental X-ray unit on a mobile stand, operating at 60 kV and 8 mA from a 220 V, 1 kVA supply, with exposure times from 0.2 to 4 seconds and total filtration published at 2.5 mm aluminium. Exposure parameters are selected by microcomputer control through a separate panel, with a single touch button. Leakage radiation is published at under 0.002 mGy/h at one metre.

The focus specification is where this unit asks a real question of the buyer. The standard focal spot is 1.5 mm, with a 0.8 mm focus available as an option — and that option is paired with a tube current of 0.5 mA rather than 8 mA. Those two configurations are not simply better and worse; they are different engineering compromises. A larger focal spot spreads the heat load and permits high current, which gives short exposures. A finer focal spot resolves finer detail but cannot absorb the same thermal load, so current must drop and exposures lengthen accordingly.

That matters because sharpness is lost two ways. Geometric unsharpness grows with focal spot size, so a coarse focus softens every edge in the image. Movement unsharpness grows with exposure time, so a long exposure softens the image of a patient who cannot hold still. Choosing the fine focus without checking what exposure times the reduced current implies can trade one form of blur for another.

Total filtration at 2.5 mm aluminium sits above the 1.5 mm equivalent minimum commonly cited for intraoral sets to 70 kV, which is a comfortable position for beam quality assessment.

Focus-to-skin distance, cone length and field size are not published, and the receptor the unit is intended for is described inconsistently. Both are covered below. Medigear.uk can arrange supply, delivery, installation, commissioning and service cover across the United Kingdom.

Intraoral radiography carries the diagnostic load in UK general dentistry, and a column-mounted unit is the fixed-position answer to it. The SJD-C09 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.

The mounted format shapes how it fits a practice. A tube head on an articulated arm returns to a known position each time, which suits a surgery taking radiographs through the day at a consistent working distance. The separate control panel lets the operator stand well clear of the tube for every exposure, which is the most effective dose control available and is built into the format rather than bolted on.

Output at 8 mA supports short exposures on the standard configuration, which helps with patients who find receptors difficult to tolerate and with paediatric work where holding still is the limiting factor.

The focus question bears directly on case selection. Practices whose radiographic work centres on caries detection, endodontic length verification and fine periapical detail should weigh the standard 1.5 mm focal spot carefully with their Medical Physics Expert, and consider whether the optional finer focus is worth the longer exposures it implies. Practices using radiographs mainly for gross assessment and bone-level review will find the standard configuration less constraining.

Room requirements are the practical difference from carried equipment. Controlled area designation, wall construction, adjacent occupancy and operator position all form part of the Radiation Protection Adviser's assessment for a fixed installation, and that work belongs before installation rather than after.

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.

Filtration with margin

Total filtration published at 2.5 mm aluminium sits above the minimum commonly cited for intraoral sets, at 70 kV, giving beam quality assessment room rather than a bare pass.

Very low published leakage

Housing leakage stated at under 0.002 mGy/h at one metre gives your Radiation Protection Adviser a definite and low figure when assessing controlled area and operator position.

An operator position built into the format

A separate control panel means the operator stands away from the tube for every exposure by design, which is the most effective dose control available and does not depend on discipline in the moment.

High current for short exposures

Eight milliamps on the standard configuration supports short exposure times, which narrows the window for patient movement — useful with children and anxious patients.

Two focus configurations to choose between

A 1.5 mm standard focal spot and an optional 0.8 mm allow the unit to be matched to the diagnostic work the practice actually does, once the exposure implications are understood.

A repeatable working position

An arm-mounted tube head returns to a consistent geometry each time, which supports reproducible technique across a team.

Microcomputer parameter selection

Exposure parameters are selected by a single button press through the control panel, which supports consistent settings across operators once agreed with your Medical Physics Expert.

UK supply, installation 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-C09 across the United Kingdom.

60 kV tube voltage

Operation at 60 kV sits within the established kilovoltage range for intraoral dental radiography and at the threshold governing minimum focus-to-skin distance.

8 mA tube current

Published tube current on the standard configuration, supporting short exposure times.

1.5 mm focal spot

Published standard focal spot size — the figure governing geometric unsharpness; discuss with your Medical Physics Expert.

Optional 0.8 mm focal spot at 0.5 mA

A finer focus is available, paired with substantially reduced current — request the resulting exposure times before selecting it.

2.5 mm Al total filtration

Published total filtration, above the minimum commonly cited for intraoral sets operating up to 70 kV.

Leakage under 0.002 mGy/h at one metre

Published housing leakage figure, used by the RPA in assessing controlled area and operator position.

Exposure range 0.2–4 seconds

A twenty-fold span, with the working values set by your Medical Physics Expert and recorded as local diagnostic reference levels.

Microcomputer exposure control

Parameters are selected electronically through a single touch button rather than set mechanically.

Separate control panel

A wall-mounted panel allowing the operator to stand clear of the tube for every exposure.

Column-mounted tube head on an articulated arm

The tube head is carried on an arm and column, giving a repeatable working geometry.

Mobile base

The column stands on a wheeled base — confirm the footprint, whether it locks, and the arm reach when planning the room.

Pneumatic patient seat

A height-adjustable seat is shown with the unit — confirm whether it is included in the supply or chargeable.

220 V, 1 kVA supply

Approximately 4.3 A at UK mains voltage — within a standard circuit, though the stated ±10% input range needs confirming against UK supply tolerance.

Digital and film receptor references

The manufacturer's material refers to both — confirm which receptor the exposure presets are calibrated for.

The Visionstar SJD-C09 gives UK dental practices a column-mounted X-ray unit on a mobile stand, running 60 kV and 8 mA from a 220 V, 1 kVA supply with a 0.2 to 4 second exposure range, published total filtration of 2.5 mm aluminium, leakage under 0.002 mGy/h at one metre, microcomputer parameter selection and a separate control panel. It suits NHS and private general practice taking radiographs from a fixed surgery position, with the separate panel putting operator distance into the format itself. Three points need settling before order: which focus configuration suits your diagnostic work, given that the finer 0.8 mm option comes with substantially reduced current and longer exposures; the focus-to-skin distance, cone length and field size, none of which are published; and whether the unit is rated across the full UK supply range. Medigear.uk can arrange supply, delivery, installation, commissioning, staff familiarisation, service cover and planned maintenance across the United Kingdom. Contact the Medigear.uk team for pricing, lead times, focus configuration and room planning enquiries.

FAQ

Frequently Asked Questions

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

Softer edges than a finer focus would give. A finite X-ray source casts a penumbra at every boundary it records, and that penumbra scales with focal spot size — so a 1.5 mm source produces more geometric unsharpness than the optional finer focus would. Whether that matters depends on the work: it shows up most on fine detail such as an early carious lesion, a hairline root fracture or a restoration margin, and least on gross assessment. Put the figure to your Medical Physics Expert as part of the image quality discussion before ordering.

Consider it carefully rather than assuming it is the better choice, because the option comes with a tube current of 0.5 mA in place of 8 mA. A finer focal spot cannot dissipate the same heat, which is why the current drops — and a large reduction in current means a proportionally longer exposure for the same receptor density. Geometric sharpness improves; movement unsharpness gets worse, particularly with children and anxious patients. Ask the manufacturer what exposure times the 0.8 mm configuration actually requires across typical views, and take that to your Medical Physics Expert alongside the focal spot figures.

Both are published, and both read well. Total filtration is 2.5 mm aluminium, above the 1.5 mm equivalent minimum commonly cited for intraoral equipment operating up to 70 kV, which gives your Radiation Protection Adviser margin rather than a bare pass. Leakage is stated at under 0.002 mGy/h at one metre. Note that the standard referenced alongside that figure in the manufacturer's material is not the one applied in the United Kingdom, so give the measured figure to your RPA rather than the comparison.

No, and it needs to be requested. UK dental guidance sets a minimum distance from the focal spot to the patient's skin, commonly expressed as 100 mm for equipment operating at 60 kV and below, and this unit runs at 60 kV. The data sheet gives no focus-to-skin distance, cone length or field size. Request all three in writing, and have your Radiation Protection Adviser review them together with the focal spot figures before commissioning.

Confirm before ordering. The supply is specified as 220 V ±10%, which describes a range of roughly 198 to 242 V. UK mains is nominally 230 V with a tolerance that extends above 242 V at the upper end, so at the top of the permitted band the supply could sit outside the unit's stated input range. Ask the manufacturer to confirm the unit is rated across the full UK supply range, and involve a qualified electrician when the dedicated circuit is specified.

The manufacturer's material says both, and the two statements do not sit together. One feature describes developing in a light room with an image in a minute, which describes film processing, while another says the unit is for use with a digital intraoral imaging system. Ask which receptor the exposure parameter presets are calibrated for, since film and digital sensors need substantially different exposure values, and confirm whether phosphor plates are supported.

A properly designated controlled area, and usually more thought about the room. With the tube head fixed to a column in a surgery, your Radiation Protection Adviser assesses the room itself — wall construction, adjacent occupancy, the operator's position and whether structural shielding is needed. The separate control panel is an advantage here, since it lets the operator stand well away from the tube, ideally outside the controlled area, for every exposure. Set that assessment in motion before installation is scheduled.

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, complete a radiation risk assessment and designate the controlled area in local rules. 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. A column-mounted unit adds mechanical checks on the arm, balance and braking that a carried unit does not have. Warranty terms are set and issued by the seller or manufacturer, typically 12–24 months for this equipment class — confirm the term, the parts covered, and whether the pneumatic patient seat is included in the supply at all.