Vertical metal bandsaw — Mössner Rekord SM/400
Not in service — electrical overhaul in progress. Do not use the saw, blade welder or grinder.
Floor-standing vertical bandsaw for straight and contour cuts in metal. Built 1964, bought used from WMT GmbH. Will be the Metal room's only bandsaw.
Mössner Rekord SM/400 in the Metal room during electrical overhaul
Location | |
Status | Electrical overhaul / commissioning |
Default blade (planned) | 10 mm wide, 10/14 TPI variable pitch |
Blade speeds | 22 / 34 / 51 / 62 / 98 / 147 m/min |
Help / faults | Slack #metallrummet |
Blades
Planned default: 10 mm wide, 10/14 TPI variable pitch.
Blade length: 2780–2980 mm according to the seller — measure before ordering.
Wider blade = straighter cuts. Narrow blade = tighter curves. Never force a blade around a curve tighter than its minimum radius.
Choose tooth pitch by wall thickness for tubes and profiles, by cut width for solid stock.
Guide inserts above and below the table must match the blade width.
New bimetal blades need a break-in with reduced feed.
Speed selection
Six speeds: three-speed gearbox × two-step belt. Change gear only when stopped. Power off before opening guards or moving the belt.
Belt | Gear | Blade speed | Plate label |
|---|---|---|---|
Low | I | 22 m/min | High-chrome steel |
Low | II | 34 m/min | Tool steel |
Low | III | 51 m/min | Cold-rolled steel |
High | I | 62 m/min | Cast iron |
High | II | 98 m/min | Bronze, copper, zinc |
High | III | 147 m/min | Aluminium |
Use the m/min value (not the rpm column on the plate) when looking up blade data.
Six-speed chart on the SM/400
Safety
Eye and hearing protection, sturdy shoes. No gloves. Secure hair, jewellery, clothing.
Upper blade guard just above the work.
Use a push stick or clamp for small parts; use a fixture for round stock that can roll.
Never pull a stuck part backwards out of a running blade.
Never slow the blade by pressing material against it.
Never leave the saw running unattended.
How to use (after commissioning)
Choose blade and speed for the material and thickness. No wood or composites.
Power off: check blade condition, tension, tracking, guide inserts and guards.
Set the upper guide just above the work and lock it.
Support long stock. Clamp small or round parts in a fixture.
Start, let the blade reach speed, then feed smoothly. Don't force the feed.
If the blade wanders, binds or overheats: stop, wait for a full stop, power off and investigate.
Stop and wait for the blade to stop before removing parts or offcuts.
Clean with brush or vacuum (not compressed air). Report blade damage.
Blade welder
The saw has an IDEAL blade welder and grinding unit for joining blade loops. The weld must be ground to blade thickness so it passes the guides. Not in use until checked as part of the electrical overhaul.
IDEAL blade welder and grinding wheel
Maintenance
Power off before blade changes, guide adjustment, belt access or service.
Inspect blade, guide inserts, wheel tyres and belt regularly.
Gearbox oil level is checked per the original manual. Don't add oil without knowing the correct grade.
Specifications
Manufacturer | August Mössner KG, Mutlangen, Germany |
Model / serial no. | Rekord SM/400 / 13296 |
Year | 1964 |
Throat / wheel diameter | 400 mm / 400 mm |
Table | 610 × 500 mm |
Weight | approx. 400 kg |
Blade length | 2780–2980 mm |
Blade speeds | 22, 34, 51, 62, 98, 147 m/min |
Fitted equipment | IDEAL blade welder, grinding unit, work light |
Supplier | WMT GmbH & Co. KG, stock no. 1108-38982 |
SM/400 identification plate
Documents and links
Original SM300/SM400 instructions (German, 4 pages, Scribd) — operation, guides, lubrication, wiring diagram.
LENOX Guide to Band Sawing (PDF) — curve radius p. 9, break-in p. 22, tooth damage p. 26 (printed page numbers).
Mössner service — parts and documentation.
Owner forum (German): SM400 restoration, blades, welding and guides
CCOHS: cold metal saws, bandsaw guarding