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Precision Screw Machining

Machinery and Capabilities, Davenports, Acme Gridleys, Brown and Sharpes

Astra consists of 18 Davenport multi-spindle screw machines, 10 Acme Gridley multi-spindle screw machines and 4 Brown and Sharpe single-spindle screw machines.

Astra also boasts a large secondary operation department, which capabilities include:

  • Drilling
  • Milling
  • External Broaching
  • Tapping
  • Threading
  • Slotting
  • Centerless Grinding
  • Reaming and Stamping

Because of Astra’s wide range of machinery, it can provide a wide range of services to its customer base. By maintaining strong commitment and communication, Astra is able to determine its customer’s needs and give you, the customer, what you want the first time, every time, on time.

Davenports

The Davenport is a five-spindle automatic screw machine and is regarded as one of the best production machines available. It is diverse in its capabilities and capacities. It can machine bar-stock as large as 7/8” round, 3/4" hex, and 5/8” square, and we at Astra have machined bar diameters as small as 3/32” round.

The Davenport can perform many operations simultaneously and it is this diversity that allows us to make your parts effectively and competitively priced.

Capabilities:
Milling, thread rolling, tapping, threading, cross-drilling, cross-tapping, slotting, reaming, knurling, roll stamping, back-finishing and burnishing only to name a few.

Acme Gridleys

The Acme Gridley is a six-spindle automatic screw machine. Astra’s Acme Gridleys range in size giving us diversity in our machining capacities and capabilities. Astra’s smallest Acme is a 1” round capacity machine and our largest Acme is a 2-5/8” round capacity machine. This allows Astra to machine diameters as small as 3/8” round and as large as 2-5/8” round.

Capabilities:
Thread rolling, tapping, threading, knurling, broaching, reaming, cross-drilling, burnishing, trepanning, recessing, roll stamping and back finishing

Brown and Sharpes

The Brown and Sharpe is a single spindle screw machine that is ideal for small volume runs and sample orders. Our Brown and Sharpes can handle bar stock up to 2” round and as small as 1/8” round.

Capabilities:
Threading, tapping, thread rolling, knurling, reaming, burnishing, cross-drilling, slot

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