Lead Screw Tapping Attachment

L-1518 Effective 00-00-00

Style AL Series 21000 and 23000These lead screw tappers are completely automatic. The leadscrew head has its own built-in stroke which eliminates drill pressfeeds. To operate, merely depress the push button which sets thetap in motion for a complete cycle. Or, use the convenient footpedal which also sets the unit in operation but has the advantageof freeing both hands.When the start button is depressed, the electrically-controlled airpressure is released engaging the sensitive friction clutch. Thetap, being completely controlled by the lead screw, is fed gentlyand automatically into the work. The result is continuous andrepetitive uniformity and precision that never varies. And it doesnot take a skilled operator to produce perfect pieces. If you canpush a button, you’re a tapping expert!The lead screw will eliminate parts spoilage and stripped threads,reduce inspection, cut fixture costs, repeat depth accuracy within1/3 turn of pitch, provide automatic tap protection... and more.

• Precise operation every time.• Electrically controlled, air operated.• Built-in stop gives uniform depth within 1/3 turn.• Friction clutch gives smooth, cushioned action and

tap protection.• Precision thread ground lead screws are changed

in seconds.• Completely automatic.• Reverses at twice forward speed to increase

productivity 33% and avoid tap jamming.Standard EquipmentOrder Nos. 1AL and 3AL are supplied with groundedpower line cord, air line with fittings, foot switch with grounded cord and plug, set of 4 TRU-GRIP tap collets, wrenches, quill clamping cover and drive adapter as required.Lead Screw NOT Included, Order Separately. See chart below.

Lead Screw Assemblies For All Procunier Lead Screw Tappers1L and 1AL Tapper 3AL Tapper

1/2″ Dia. Lead Screw 3/4″ Dia. Lead Screw

Pitch Order No. Price Order No. Price

10 — — GH50-23477 $260.0011 — — GH50-23475 240.0012 — — GH50-23471 240.0013 — — GH50-23469 230.0014 — — GH50-23467 230.0016 — — GH50-23465 230.0018 — — GH50-23463 230.0020 GH50-21459 $190.00 GH50-23459 230.0024 GH50-21455 190.00 GH50-23455 230.0027 — — GH50-23451 230.0028 GH50-21449 190.00 GH50-23449 230.0032 GH50-21445 190.00 GH50-23445 230.0036 GH50-21443 200.00 GH50-23443 300.0040 GH50-21439 190.00 GH50-23439 300.0044 GH50-21437 200.00 GH50-23437 360.0048 GH50-21435 200.00 GH50-23435 360.0056 GH50-21429 200.00 GH50-23429 360.0060 — — — —64 GH50-21425 230.00 GH50-23425 360.0072 GH50-21421 230.00 — —80 GH50-21419 230.00 — —

Standard Pitches

For LEFT HAND operation the unit MUST be modified. Not for use in inverted position.When Ordering Special Mounts Specify Drill Press Make and Order No., Quill Diameter and Spindle Taper

1L and 1AL Tapper 3AL Tapper1/2″ Dia. Lead Screw 3/4″ Dia. Lead Screw

Pitch Order No. Price Order No. Price

.35 mm GH50-21509 $350.00 — —

.40 mm GH50-21511 240.00 — —

.45 mm GH50-21515 240.00 — —

.50 mm GH50-21517 200.00 GH50-23517 $280.00

.60 mm GH50-21521 200.00 GH50-23521 280.00

.70 mm GH50-21525 200.00 GH50-23525 250.00

.75 mm GH50-21529 240.00 GH50-23529 250.00

.80 mm GH50-21531 200.00 GH50-23531 250.001.00 mm GH50-21535 260.00 GH50-23535 230.001.25 mm GH50-21539 280.00 GH50-23539 230.001.40 mm — — GH50-23541 350.001.50 mm — — GH50-23543 230.001.75 mm — — GH50-23549 330.002.00 mm — — GH50-23551 330.002.50 mm — — GH50-23553 350.00

Metric PitchesIncludes one-piece hardened and ground lead screwwith TRU-GRIP tap holder, split lead screw nut, capand wiper oiler. Entire unit is quickly replaced by merelyremoving pin in drive collar and two screws in leadscrew cap. Fully adjustable for wear. Choose pitch,right-hand thread and model from table, left-handthread available P.O.A. Other pitches available, pleaseinquire.

CapacityStroke Max. Rec. Shipping

Inch M.M Max Pitch Speed Weight

00-#8 M1-M4 1¹�₈″ 32 to 127 2000 RPM 7 lbs.

Drill Press Quill Taper Order No. Price

Allen No. 2 2.250 2A Jac GH50-20053 $800.00Atlas 15″ 1.812 33 Jac GH50-20035 800.00Buffalo 15″ 1.750 33 Jac GH50-20037 800.00

18″ 2.375 2 M.T. GH50-20063 800.00Cincinnati 16″ 1.850 33 Jac GH50-20036 800.00

18″ 2.375 2 M.T. GH50-20063 800.00Clausing 15″ 1.988 33 Jac GH50-20038 800.00

15″ 1.988 2 M.T. GH50-20064 800.00Craftsman 1.625 33 Jac GH50-20039 800.00

1.812 33 Jac GH50-20035 800.001.875 33 Jac GH50-20041 800.00

Jet No. 13R 1.812 6A Jac GH50-20061 800.00Powermatic 15″ 2.187 33 Jac GH50-20047 800.00

15″ 2.187 2 M.T. GH50-20068 800.00Rockwell/Delta 14″ 1.750 33 Jac GH50-20037 800.00

15″ 2.000 33 Jac GH50-20048 800.0017″ 2.250 33 Jac GH50-20049 800.0017″ 2.250 2 M.T. GH50-20069 800.0020″ 2.375 2 M.T. GH50-20063 800.00

South Bend 14″ 1.750 6A Jac GH50-20050 800.00Wilton 15″ 2.000 33 Jac GH50-20048 800.00

Standard Model Style L Lead Screw TappersStyle L Series 20000Lead Screw Tapping, the mostadvanced method yet devisedThe lead screw principle provides benefits noother system can even promise. It offersunmatched accuracy, precision control andeliminates rejects and gauging procedures.No other method can match it for speed, sensitivity and productivity.Standard Features:• Finger tip trigger arm gives

superior sensitivity• Built-in stop gives uniform depth within

1/3 turn.• Reverses at twice forward speed. Idles in

neutral.• Lead screw assembly changes in seconds

to vary pitch.• Balanced, hardened gear train for long,

dependable service life.

No. 1L furnished with cover clamp set of 2 collets(#6 and #8) and wrenches.For Left Hand operation the unit must be modified.*Special mountings to some drill presses P.O.A.

Prices include standard cover clamp.Special sizes P.O.A.

Prices include standard cover clamp.Special sizes P.O.A.

Capacity

Soft Material Steel Max.Stroke Recom. Spindle Order

Inch MM Pipe Inch MM Max Speed No. Weight Price

#0-¹�₄″ M2-M6 — #0- ³�₁₆″ M2-M4 ³�₄″ 2000 RPM GH50-1AL 16 lbs. $1500.00#10-³�₄″ M5-M18 ¹�₄ - ³�₈″ #10- ¹�₂″ M5-M12 2¹�₄″ 1200 RPM GH50-3AL 35 lbs. 2350.00

Lead screw not included.See chart below.