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Next Generation of Sliding-Headstock CNC Lathe

INDEX has launched the next generation of its TRAUB TNL12 sliding-headstock lathe for small part machining.

"Representing a comprehensive evolution of the machine, the new TNL12 incorporates a plethora of design changes that boost speed, flexibility and accuracy," said a company spokesperson. "The new machine provides an especially strong value proposition for medical manufacturers responsible for producing implants, bone screws and instruments for minimally invasive surgery."

Like its predecessor, the new TNL12 features four tool carriers that can be applied to a workpiece simultaneously, albeit with significant changes to the machine's kinematics. While the front-working attachment and counter spindle were previously arranged on a single slide, they are now housed on separate slides. This eliminates potential interdependence between front-end and counter spindle machining, allowing for much greater flexibility in programming. Additionally, this design reduces the mass of both elements, allowing for faster and more dynamic machine response.

The features enabling rear-end machining also have undergone substantial changes. While the former model of the machine offered X-axis machining on the counter spindle, the new TNL12 provides full 3-axis machining in this position. A new back-working attachment offer six tool stations, with up to four allowing live tooling, as well as a flushing unit.

Overall tooling capacity has also been increased, with the capability to house up to 40 tools with the use of double and triple holders. This allows operators a greater degree of freedom to optimize machining of highly complex parts. Each of two 6-station tool turrets has its own servomotor and interpolated Y-axis, with chip-to-chip tool change times reduced to just 0.3 seconds.

While the previous generation TNL12 used belt drives on the main and counter spindles, the new machine incorporates fluid-cooled motor spindles with a maximum speed of 12,000 RPM. The new TNL12 also offers higher dynamic response due to low-mass clamping cylinders and a carbon sleeve for the guide bushing drive. The guide bushing is freely selectable, live or programmable, with the ability to adjust itself via a pneumatic servo valve.

Refinements to the TNL12's overall structure include a non-hydraulic design, gray cast iron bed and thermo-symmetrical design that increases thermal accuracy and reduces warm-up times. These and other features combine to increase the stability of the machine, resulting in higher accuracy and shorter cycle times.

The new TNL12 includes an 8-bar coolant pump, with the option to add one or two adjustable pumps capable of 20 bar to 120 bar. A 250-bar pump is also available for special applications. Coolant is cleaned by a compact belt filter, and users can choose between a tray or conveyor for chip removal.

To maximize the potential for unmanned operation, the TNL12 offers options for automated rinsing, part removal via a small gripper and removal of long parts through the counter spindle. The machine can also be paired with a robot for machining of chucked parts. Furthermore, the machine can be equipped with an optional whirling unit with a +/- 30° swivel angle for high-speed whirling to a length of 75 mm.

The TNL12 incorporates the current TRAUB TX8i-s control, which offers Industry 4.0 connectivity via INDEX's iXworld platform. The folding and swiveling operating panel includes a 19" touchscreen and provides easy access to a networked production environment.

"Users of the previous model of TNL12 will find it easy to implement the new machine within their operations, since it is backwards compatible with its predecessor's tool holders for the turret and front- and back-working attachments," said the spokesperson.

For more information contact:

INDEX Corporation

14700 North Pointe Blvd.

Noblesville, IN 46060

317-770-6300

sales@index-usa.com

us.index-traub.com

SOUTHWEST

NM

AME, Inc.

5770 Clarkson

Unit C

Denver, CO 80216

303-922-9266

www.amerm.com

AR, LA

Cardinal Machinery

7535 Appling Center Drive

Memphis, TN 38133

800-264-8511

www.cardinalmachinery.com

TX

Prosper Machine Tools, LLC

7415 Whitehall Street

Suite 123

Richland Hills, TX 76118

682-626-5537

www.prospermt.com

SOUTHEAST

AL, FL (Panhandle), MS, TN

Cardinal Machinery

7535 Appling Center Drive

Memphis, TN 38133

800-264-8511

www.cardinalmachinery.com

NC, SC, VA

Machinery Solutions, Inc.

1681 Two Notch Road

Lexington, SC 29073

803-359-7000

info@machinerysolutions.com

www.machinerysolutions.com

NORTHEAST

CT, ME, MA, NH, W. PA, RI, VT

INIRAM Precision Machine Tool Inc.

333 North Main Street

Middleton, MA 01949

978-854-3037

www.iniram.com

DE, MD, NJ, S. NY, E. PA

Single Source Technologies, Inc.

2192 Winterberry Court

Warrington, PA 18976

610-430-3670

www.singlesourcetech.com

N. NY

Great Lakes Machinery, Inc.

4 Lancaster Pkwy.

Lancaster, NY 14086

716-684-4100

sales@glmincny.com

www.greatlakesmachineryinc.com

MIDWEST

S. IL, KS, MO

Dynamic Machine Tool, Ltd.

84 Hubble Drive

Suite 200

St. Charles, MO 63304

636-447-2900

www.dynamicmachinetool.com

N. IL

Integrated Machinery Systems

101 North Prospect Avenue

Itasca, IL 60143

630-250-8305

www.imscnc.com

MI

Methods & Equipment Associates

31731 Glendale Avenue

Livonia, MI 48150

734-293-0660

www.methods-equipment.com

MI (Upper Peninsula), E. WI

Premier Machine Tool Midwest

PO Box 102

Hartland, WI 53029

414-254-5150

www.pmtmidwest.com

IN, KY, OH

Technical Equipment

10165 International Blvd.

Cincinnati, OH 45246

800-852-0582

www.techequip.com

WEST

CO, WY

AME, Inc.

5770 Clarkson, Unit C

Denver, CO 80216

303-922-9266

www.amerm.com

AZ

CNC PROS

1502 N 17th Ave.

Phoenix, AZ 85007

602-332-5815

www.cnc-pros.com

N. CA, NV (Reno & Carson City)

CNC Solutions

1011 Pecten Court

Suite A

Milpitas, CA 95035

408-586-8236

www.cncsolutions.biz

OR, WA

Ellis Machinery & Equipment, Inc.

6225 20th Street East

Fife, WA 98424

253-926-6868

www.ellismachinery.com

S. CA, NV (Clark County)

Protek CNC

25 W Easy Street

Suite 306

Simi Valley, CA 93065

805-579-9995

www.protekcnc.com

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