Becker VTLF 2.250

An oil-free rotary-vane pump for CNC vacuum hold-down where the required airflow and working vacuum match the table and leakage conditions.

Representative Becker VTLF-series pump; model configuration varies — Photo: Becker Pumps. VTLF family illustration, not a distinct photograph of each model.

Manufacturer specifications

Suction air rate, 50 Hz: 144 CFM
Suction air rate, 60 Hz: 169 CFM
Published vacuum rating: 23.6 in. HgV
Technology: Oil-free rotary vane

VTLF values are from the manufacturer’s US data sheet. CFM is cubic feet per minute; in. HgV is inches of mercury vacuum relative to atmosphere. The sheet gives reference conditions of 0 in. HgV and 68°F, with ±5% tolerance for its performance curves. Suction-air rate and vacuum are separate ratings, not simultaneous airflow at maximum vacuum. Motor voltage, power and options depend on the supplied variant; confirm the nameplate and current configuration before purchase.

CNC application

A starting point for review of spoilboard and nested-base routing applications. Porous board, uncovered zones and leakage can change the pump requirement substantially.

Selection must account for the operating vacuum, leak rate, material, altitude and duty. Published figures are reference data, not a sizing guarantee or a promise of installed performance.

Service & rebuild assessment

For weak hold-down, unusual noise, overheating or a trip, share the model, serial number, motor nameplate, fault history and vacuum readings. Check the table, seals, piping and filters as part of the diagnosis; a machine-side leak can resemble a pump problem.

SLAG reviews service and rebuild options around the actual unit. Inspection may include vanes, bearings, rotor/cylinder wear, filters, cooling and motor condition. Parts availability and inspection determine the repair scope; a rebuild or performance outcome is not promised before assessment.

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