HRX-TT-200 · Telescope Tube

Telescope Tube & Optical Housing — Telescope Tube

Name: Telescope Tube & Optical Housing
Brand: HRX MACHINING
SKU: HRX-TT-200
Availability: MadeToOrder

Thin-wall tubes, binocular bodies, baffle cones and eyepiece holders — machined to one datum.

Tolerance±0.02 mm

MOQ1 pc

Lead time12–18 days

AvailabilityMade to order

Outer diameter

Surface

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Applications

Astronomical telescopes
Binocular bodies and bridges
Spotting scopes
Laser rangefinder housings
Optical instrument bodies

Beyond single tubes we also machine complete optical bodies: binocular shells with their connecting bridge, baffle cones with anti-reflection ridges, and eyepiece holders with side ports. The optical tube is the part that decides whether your optics stay aligned. We machine it from 6061-T6 seamless tube and finished bar, holding bore concentricity within 0.02 mm over the full length so that the objective and focuser sit on the same axis. Wall thickness down to 1.5 mm is routine; thinner sections are possible with a mandrel fixture. Internal baffle threads, dovetail rails and focuser flats are machined in the same setup to keep everything referenced to one datum.

Specifications

Material: Aluminium 6061-T6 (7075 optional)
Dimensions: Ø 80–150 mm × L 200–600 mm
Wall thickness: 1.5 – 5.0 mm
Concentricity: 0.02 mm TIR
Roundness: 0.03 mm
Bore tolerance: H8 standard, H7 on request
Surface roughness: Ra 1.6 µm (Ra 0.8 optional)
Thread: internal baffle threads, M or custom
Machine: CNC turning + 4-axis milling
Surface finish: Anodised / sandblasted / bare
MOQ: 1 piece
Lead time: 12–18 working days

Key features

Bore concentricity within 0.02 mm over full length
Wall thickness down to 1.5 mm without chatter
Internal baffle threads cut in the same setup
Dovetail rail and focuser flat machined to one datum
Optional knurling, laser marking and end rings
Binocular shells machined as a matched left/right pair
Baffle cones with internal anti-reflection ridges

Scope of delivery

Tube wrapped in EPE sleeve
End caps on both sides
Export carton, palletised for bulk
Dimensional report on request

Quality control

Every batch is checked on a coordinate measuring machine, with calipers, micrometers and gauge blocks on the shop floor. A dimensional report is available with each shipment and first-article inspection is free on series orders.

Competitive advantages

vs. Extruded tubes (no internal threads): CNC turning + 4-axis in one setup: internal baffle threads, dovetail rail and focuser flat on one datum
vs. Cast optical housings: Machined 6061-T6 with bore concentricity 0.02 mm TIR; cast housings drift out of concentricity when cooling
vs. Off-the-shelf tube kits: Type III hard anodising, black or custom colour; knurling and end rings to your specification
vs. Laser-cut + bent sheet housings: No weld seams, no spring-back, bore stays round and concentric over 600 mm

Frequently asked questions

What file formats do you accept?

STEP (.stp/.step) or IGES (.igs) for 3D, PDF or DWG for 2D drawings with tolerances and surface finish. If you only have a physical sample, we can reverse-engineer it — and a photo with the key dimensions is enough for a budget estimate.

What tolerances can you hold?

Standard machining tolerance is ±0.05 mm, and ±0.01 mm on features you mark as critical. Locating bores can be held to H7. Tell us which dimensions actually matter — over-tolerancing is the fastest way to raise cost without improving the part.

Is there a minimum order quantity?

No. We machine one piece as readily as one thousand. Unit price improves noticeably at 50, 200 and 1,000 pieces because setup and programming amortise, and we use the same programme and fixtures from prototype through to series.