Heavy Industrial SPM
Model: NCT-SPM-29
Comprehensive Machine Overview
Designed to maintain strict dimensional tolerances under continuous multi-shift production, the Steel Bar Threading Machine provides <p>The Steel Bar Threading Machine by National Cutting Tools is a heavy-duty production machine tool designed for cutting external threads on solid steel bars, high-tensile structural bolts, and anchor shafts. Threading tough carbon steel grades (EN-8, EN-9, EN-19) requires massive headstock torque, vibration damping, and rigid tool holding to prevent tool chatter and premature chaser chipping.</p>.
<p>Built with a heavy stress-relieved cast bed and an all-geared multi-speed transmission, this machine delivers the low-RPM, high-torque output required to machine coarse pitch metric and imperial threads up to M65 / 2.1/2" diameter in a single pass. The self-opening tangential die head releases automatically at the programmed stop, ensuring rapid cycle times and consistent thread dimensions over continuous industrial shifts.</p>
<h3>Key Features</h3>
<ul>
<li><strong>Heavy All-Geared Headstock:</strong> Hardened alloy steel gears running in a sealed oil bath provide low spindle speeds (30, 60, 90 RPM) with immense cutting torque.</li>
<li><strong>Tangential Chaser Die System:</strong> Four-chaser configuration cuts on the end face, allowing multiple regrinds and exceptional consumable economy.</li>
<li><strong>Heavy-Duty Self-Centering Vise:</strong> Dual-screw vise with hardened serrated jaws holds high-tensile bar stock dead on center under heavy cutting loads.</li>
<li><strong>Positive Lead Screw Engagement:</strong> Eliminates lead error and pitch distortion on long threaded lengths and coarse pitches.</li>
<li><strong>Automatic Trip Mechanism:</strong> Opens the die head instantaneously at the length stop, preventing thread damage during carriage reverse.</li>
<li><strong>High-Volume Coolant Flushing:</strong> Gear-driven coolant pump washes away heavy swarf and keeps cutting temperatures stable.</li>
</ul>
<h3>Applications</h3>
<ul>
<li>Heavy foundation bolt and anchor stud manufacturing for civil infrastructure</li>
<li>High-tensile tie rod production for bridges and steel mill buildings</li>
<li>Transmission tower and railway track fastener fabrication</li>
<li>Heavy equipment hydraulic cylinder rod and piston shaft threading</li>
</ul>
<p>Built under strict ISO 9001:2015 quality standards at our Ludhiana works. Run-off testing with buyer-specified steel bar grades is completed prior to factory dispatch or container export packing.</p>
Engineering Data Matrix
| Technical Parameter | Operational Specification / Value |
|---|---|
| Range | 32-54, 54-85 |
| Weight (KG) | 550, 990 |
Steel Bar Threading Machine Works QA & Export Packaging Protocol
✓ Thread Geometry & Pitch Gauge Verification Protocol
- • Thread Pitch & Gauge Inspection: Sample threads cut or rolled on bar/pipe stock verified with calibrated Go / No-Go thread ring and plug gauges (IS 554 / ISO 7 / IS 16172).
- • Chaser / Roll Die Parallelism: Die head trip mechanism and roll die spacing aligned within 0.02 mm under full cutting and forming torque.
- • All-Geared Headstock Burn-In: 48-hour continuous trial of all spindle speeds and coolant circulation under loaded cutting conditions to ensure thermal stability.
- • Thread Sample Sign-Off: Physical threaded test samples preserved and HD video of threading cycle sent for buyer approval before packing.
Precision Threading Machine Transit Protection
- • Die & Lead Screw Wax Coating: Chasers, thread rolls, vice jaws, and lead screws coated with heavy-viscosity protective rust-preventive petroleum wax.
- • Carriage Mechanical Locks: Workpiece carriage and rack gear secured to prevent movement and shock during sea transit.
- • Cabinet Desiccant Packs: Hermetically sealed silica gel canisters placed inside control enclosures to prevent condensation.
- • ISPM-15 Heat-Treated Crating: Heavy wooden box packaging compliant with international maritime phytosanitary export standards.
International Shipping Destinations & India Supply Network
National Cutting Tools manufactures and configures the Steel Bar Threading Machine for seamless integration into international fabrication lines and domestic scaffolding manufacturing plants. All machinery is customized for local electrical grids, certified for regional compliance, and dispatched with seaworthy protective packaging.
Primary International Export Destinations
All Export Hubs →Pan-India Fast Freight Dispatch (Ludhiana Works)
India Directory →Full-truckload (FTL) and part-load freight dispatch directly from our central manufacturing works at Focal Point, Ludhiana. Factory engineers provide on-site leveling, tool alignment, and operator training across all major industrial manufacturing clusters:
Frequently Asked Questions • Steel Bar Threading Machine
Direct Factory Machinery Proposal
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Industrial Pipe & Bar Threading Machines: Die Heads & Production Cycles Guide
Technical breakdown covering machine sizing, tooling die setups, cycle speeds, and operational maintenance for Threading Machines.
