SOCO G18-SP4

The G18-SP4 is designed for general dental surgery: opening cavities, shaping teeth for crowns, and removing old restorations. A typical appointment passes through several burs, and the handpiece is built around that sequence. The push-button chuck frees one bur and takes the next, while the three-way spray stays with the head. The main task is cutting enamel and dentine, and the high-speed rotor suits it.

Restorative treatment rooms are a natural setting, because preparation sessions there involve repeated bur changes at the chair. Hospital dental departments use handpieces of this pattern in the same way. The dentist cuts, presses the button when a stage ends, and seats the next bur, so the head, chuck, and spray form one working end that needs no other attachment at the tip.

The air supply reaches the back end of the handpiece at 0.25 to 0.27 MPa, quoted for a four-hole connection. The three-way spraywater comes from the same unit. A sound level of 68 dB or less suits a treatment room where the dentist, the assistant and the patient talk through the appointment. The rotor turns at 300,000 rpm or more, the speed range used for cutting enamel and dentine. Use those figures to match the unit at the chair.

Teams that keep spare cartridges on the shelf will find the standard push cartridge ordered as H18CA-SP, made to fit the NSK PAX-SU03 position. Cartridges and handpieces have separate codes, which keep each order clear for the practice manager.

A bur change at the button

The push-button chuck frees the bur on one press, and the next bur seats in the same chuck. The spray stays set around the head. A bur change takes a single step at the chair.

Cooling from three points

Three spray points sit around the working end and carry cooling water to the bur from several sides. Heat is carried away along the whole cut. The three-point layout aims to provide even cooling.

An anti-retraction head design

The head carries an anti-retraction design, and the handpiece is named for it. Because the feature sits in the head, it works at the same end as the chuck and the spray.

Speed from the air supply

The rotor turns at 300,000 rpm or more on an air supply of 0.25 to 0.27 MPa. That speed suits cutting enamel and dentine, and air drives the turbine.

A standard push cartridge

The cartridge is ordered as H18CA-SP and is made to fit the NSK PAX-SU03 cartridge position. It holds the bur inside the head and responds to the push button.

Running sound of 68 dB or less

The sound level is 68 dB or less. A quiet room helps the dentist and the patient talk through a long preparation.

A four-hole back end

The air figure of 0.25 to 0.27 MPa is quoted for a four-hole connection at the back end. Site preparation follows that single supply figure.

One chuck size for each bur

The chuck takes burs 1.59 to 1.6 mm across and 21 to 23 mm long. One size range covers the burs the handpiece takes.

A working end that stays simple

The head, chuck, and spray make up the whole working end. Three parts work together at the bur, so a dentist can see what the handpiece offers at a glance.

Anti-retraction head

The head has an anti-retraction design. It forms part of the handpiece name and sits at the working end.

Standard push head

The head is a standard push type, and the button on it releases the bur with a single press.

Push button chuck

The chuck fits burs 1.59 to 1.6 mm across and 21 to 23 mm long, and the button releases the bur with a press.

Three-way spray

Three spray points sit around the bur. They carry cooling water to the cut from several sides.

Air turbine drive

The handpiece is air-driven. A 0.25 to 0.27 MPa supply spins the rotor to working speed.

Four-hole connection

The air figure is quoted for a four-hole connection at the back end of the handpiece. It is the one-supply detail site preparation needs.

Rotor speed

The rotor turns at 300,000 rpm or more. High speed is what cuts enamel and dentine at the chair.

Sound level

The sound level is 68 dB or less, measured as a figure for the handpiece in use.

Standard push cartridge

The cartridge for the standard push head is ordered as H18CA-SP. It holds the bur inside the head.

NSK PAX-SU03 fit

The cartridge is made to fit the NSK PAX-SU03 position. That fit is stated against the cartridge, and the handpiece is ordered separately.

Handpiece order code

Order the full handpiece as G18-SP4. The code names the standard push version with the four-hole back end.

G18 Series

The handpiece belongs to the G18 Series, which is built around a three-way spray. The series figures cover speed, air supply, sound level and bur size.

Bur range

One chuck covers burs 1.59 to 1.6 mm in diameter and 21 to 23 mm long. Both measurements are stated as ranges.

The G18-SP4 suits practices that want a plain, capable working end: a head with an anti-retraction design, a push-button chuck, and cooling from three spray points. General surgeries and restorative rooms that change burs at each preparation stage benefit from the single button press. Each figure on the specification belongs to one handpiece so that you can match speed, air supply, sound level, and bur size to the surgery's unit in a single pass.

Hospital dental departments with the four-hole supply in place need no further preparation beyond the air figure. Order the handpiece as G18-SP4, and the standard push cartridge as H18CA-SP.