The Morelli Telescopic Tube — .031″ is a stainless steel sleeve with a .031″ (0,80 mm) internal diameter, sized to slide freely over round wires and stems up to 0,80 mm. It is the narrowest of the three Morelli telescopic gauges and is used in orthopedic and orthodontic appliances that depend on sliding movement over a wire or stem, such as Mandibular Protraction Appliances (MPA) for the correction of Class II malocclusions.
Key Features
Bore matched to 0,80 mm stock — the .031″ (0,80 mm) internal diameter accepts light-gauge round wires and stems without play
Narrowest gauge in the line — the low-profile choice when the sliding assembly must stay discreet
Stainless steel construction — withstands soldering, welding and intraoral service without deformation
330 mm continuous length — cut to size in the lab and use a single tube across several appliances
Free telescoping action — a uniform bore keeps the sliding element moving smoothly along its full travel
Pairs with 0,8 mm accessories — fits Morelli components built on 0,8 mm stems, such as the headed ball clasp
Technical Specifications
Material: Stainless Steel
Internal Diameter: .031″ (Ø 0,80 mm)
Wire Compatibility: Round wires and stems up to .031″ (0,80 mm)
Length: 330 mm per tube
Purpose: Sliding sleeve for telescoping mechanisms in orthopedic and orthodontic appliances built on light-gauge wire
Certifications: FDA Approved, CE Approved, ISO 9001:2015, ISO 13485:2016
Country of Manufacture: Brazil
Package Includes: 5 telescopic tubes, .031″ (0,80 mm) internal diameter, 330 mm each
Clinical Applications
Mandibular Protraction Appliances (MPA) — telescoping arm running over 0,80 mm rods in Class II correction
Removable and hybrid appliances — sleeve for 0,8 mm stems and light retention wires
Laboratory fabrication — sliding elements in custom orthopedic appliances assembled from light-gauge stock
Working with light-gauge wire?
The .031″ tube is the tightest fit in the family — move up to the .035″ (0,90 mm) or .055″ (1,40 mm) telescopic tube when the appliance is built on heavier stock.
