40+ Years of Trust and Quality
Hydraulic Thread Rolling Machines
Cold thread forming machines with hydraulic force for producing external threads by rolling. Two models: DI-25 (up to 25mm, 8 ton force) and DI-40 (up to 40mm, 12 ton force). Infeed and through feed modes for fasteners, studs, and threaded components.
DI-40 · 12 Ton
DI-25 · 8 Ton
Product Range
In StockRolling Highlights
| Commercial Terms | Direct Distributor Pricing |
| Max Thread Diameter | 25 mm (DI-25) / 40 mm (DI-40) |
| Max Pitch | 2.5 mm / 3.5 mm |
| Rolling Force | 8 Ton / 12 Ton |
| Feed Modes | Infeed + Through Feed |
| Models | 2 (DI-25, DI-40) |
Since 1983
Four decades supplying Indian industry
5 Export Countries
Sri Lanka, Bahrain, Oman, UAE, Saudi Arabia
Trusted by L&T, Anchor by Panasonic & more
Enterprise clients across sectors
Cold Thread Forming for Stronger Threads
Hydraulic Thread Rolling Machines for Fastener Production
Raney Machine Tools supplies hydraulic thread rolling machines for cold thread forming on bolts, studs, screws, and threaded components. Thread rolling produces stronger threads than cutting because the metal grain flows with the thread profile rather than being cut across. The process gives superior surface finish and higher fatigue resistance compared to single-point or die-cut threads.
Our range includes two models: the DI-25 for thread diameters up to 25mm with 8 tons of rolling force, and the DI-40 for diameters up to 40mm with 12 tons of force. Both models support infeed rolling (for defined-length threads) and through feed rolling (for indefinite-length continuous threading). Flat thread rolling dies are used for both modes.
Stronger Threads by Cold Forming
Thread rolling forms threads by displacing metal rather than cutting it. Continuous grain flow produces threads with higher tensile strength, better fatigue resistance, and smoother surface finish than machined threads.
Infeed and Through Feed Modes
Infeed rolls threads of defined length (up to 80mm on DI-25, 100mm on DI-40). Through feed produces continuous threads of indefinite length for long studs and threaded bars.
Trusted Industrial Partner
Trusted by India's premier engineering corporations and exported to 5 overseas destinations.
Export Destinations
Sri Lanka • Bahrain • Oman • UAE • Saudi Arabia
2 Models
2 Hydraulic Thread Rolling Machine Models
Choose based on your maximum thread diameter, pitch, and production volume requirements.
Up to 25 mm
Model: DI-25 Hydraulic Thread Rolling Machine
8 Ton Force, 2.5 mm Max Pitch
Thread rolling machine for diameters up to 25mm (infeed) and 18mm (through feed). Max pitch 2.5mm, force 8 tons. Roll OD 120mm, roll width 80mm. Infeed rolling length up to 80mm; through feed produces indefinite length threads.
- Max Diameter (Infeed): 25 mm
- Max Pitch: 2.5 mm
- Rolling Force: 8 Tons
- Spindle Motor: 3 HP
Up to 40 mm
Model: DI-40 Hydraulic Thread Rolling Machine
12 Ton Force, 3.5 mm Max Pitch
Thread rolling machine for diameters up to 40mm (infeed) and 28mm (through feed). Max pitch 3.5mm, force 12 tons. Roll OD 180mm, roll width 100mm. Infeed rolling length up to 100mm; through feed produces indefinite length threads.
- Max Diameter (Infeed): 40 mm
- Max Pitch: 3.5 mm
- Rolling Force: 12 Tons
- Spindle Motor: 5 HP
Engineering Data Sheets
Detailed Technical Specifications (DI-25 & DI-40)
DI-25 — 25 mm Max Diameter, 8 Ton Force
Full Comparison Below| SPECIFICATION | Unit | DI-25 | DI-40 |
|---|---|---|---|
| Capacity | |||
| Max Pitch | mm | 2.5 | 3.5 |
| Max Diameter (Infeed) | mm | 25 | 40 |
| Max Diameter (Through Feed) | mm | 18 | 28 |
| Rolling Length (Infeed) | mm | 80 | 100 |
| Rolling Length (Through Feed) | — | Indefinite | Indefinite |
| Rolling Dies | |||
| Roll Outside Diameter | mm | 120 | 180 |
| Spindle Bore Diameter | mm | 40 | 54 |
| Roll Width | mm | 80 | 100 |
| Force & Power | |||
| Rolling Force | Tons | 8 | 12 |
| Spindle Motor | HP | 3 | 5 |
| Hydraulic Motor | HP | 2/3 | 2/3 |
| Coolant Pump Motor | HP | 0.15 | 0.15 |
DI-40 — 40 mm Max Diameter, 12 Ton Force
Full Comparison Below| SPECIFICATION | Unit | DI-25 | DI-40 |
|---|---|---|---|
| Capacity | |||
| Max Pitch | mm | 2.5 | 3.5 |
| Max Diameter (Infeed) | mm | 25 | 40 |
| Max Diameter (Through Feed) | mm | 18 | 28 |
| Rolling Length (Infeed) | mm | 80 | 100 |
| Rolling Length (Through Feed) | — | Indefinite | Indefinite |
| Rolling Dies | |||
| Roll Outside Diameter | mm | 120 | 180 |
| Spindle Bore Diameter | mm | 40 | 54 |
| Roll Width | mm | 80 | 100 |
| Force & Power | |||
| Rolling Force | Tons | 8 | 12 |
| Spindle Motor | HP | 3 | 5 |
| Hydraulic Motor | HP | 2/3 | 2/3 |
| Coolant Pump Motor | HP | 0.15 | 0.15 |
Industrial Sectors
Industries & Applications We Serve
Raney Machine Tools' workshop machinery supplies critical manufacturing, heavy maintenance, and fabrication facilities across Gujarat and worldwide.
Automotive & Components
Transmission housings, brake and steering assemblies, precision fasteners, and high-volume component production.
Defence & Ordnance
High-tensile alloy machining, ordnance component fabrication, and precision assemblies for defence contractors.
Pumps, Valves, Oil & Gas
Pump housings, valve bodies, flanges, threaded connectors, and heavy pipe fabrication for oilfield equipment.
Sugar & Cement Plants
Crusher and kiln roller maintenance, heavy trunnion assemblies, and general plant-floor machining.
Steel & Power Generation
Rolling-mill maintenance, turbine and generator shaft servicing, and heavy structural fabrication.
Toolrooms & Institutes
Die & mould shops, jig/fixture fabrication, ITI/Polytechnic training institutes, and R&D toolrooms.
The Raney Advantage
Why Source Thread Rolling Machines from Raney Machine Tools?
When you purchase thread rolling machines from Raney Machine Tools, you gain direct access to four decades of machine-tool engineering expertise, factory-backed guarantees, and end-to-end operational support.
Ahmedabad Central Machinery Showroom
1/A, Ramnesh Estate, Opp. Shilp Arcade, Memco-Bapunagar Road, Ahmedabad - 380025
Proven In Production
Trusted by Industry Leaders Across Gujarat & Overseas
Common Questions
Frequently Asked Questions
Get answers on thread rolling machine capacities, infeed vs through-feed rolling, and pitch limits.
We supply two models: the DI-25 (thread diameters up to 25mm, 8 ton rolling force, 3 HP spindle motor) and the DI-40 (thread diameters up to 40mm, 12 ton rolling force, 5 HP spindle motor). Both support infeed and through feed rolling modes.
Thread rolling forms threads by displacing metal between hardened dies under hydraulic pressure, without removing any material. Thread cutting removes metal with a single-point tool or die. Rolled threads are stronger because the metal grain flows with the thread profile rather than being cut across. They also have better surface finish and higher fatigue resistance.
Infeed rolling produces threads of a defined length (up to 80mm on the DI-25, 100mm on the DI-40). The workpiece sits between flat dies that close and form the thread. Through feed rolling produces threads of indefinite length for long studs, threaded bars, and continuous threading applications. The workpiece passes through the dies as they roll.
Thread rolling works on ductile metals: mild steel, alloy steel, stainless steel, brass, copper, and aluminium. The material must be soft enough to deform plastically under the rolling force. Hardened materials (above approximately 40 HRC) are generally not suitable for thread rolling and should be thread-cut instead.
The DI-25 handles thread diameters up to 25mm in infeed mode and 18mm in through feed mode, with a maximum pitch of 2.5mm. The DI-40 handles up to 40mm in infeed mode and 28mm in through feed mode, with a maximum pitch of 3.5mm. Both use flat thread rolling dies.
Die life depends on the material being rolled, thread size, and rolling parameters. On mild steel, a set of hardened flat dies typically produces several thousand to tens of thousands of parts before needing replacement or regrinding. Harder materials and larger thread sizes reduce die life. Replacement dies are available in standard thread profiles.
Thread rolling is faster (the thread forms in one pass), produces stronger threads (better fatigue resistance), gives superior surface finish (burnished, not machined), wastes no material (no chips), and the dies last much longer than cutting tools. For production volumes of fasteners, studs, and threaded components, thread rolling is significantly more economical per piece.
Direct Factory Pricing
Request a Commercial Quotation
Tell us your thread diameter, pitch, material, and production volume. Our application engineers will respond within 2-4 business hours with machine recommendations and pricing.
Visit Showroom / Quick Contact
Raney Machine Tools Showroom1/A, Ramnesh Estate, Opp. Shilp Arcade, Memco-Bapunagar Road, Ahmedabad - 380025, Gujarat, India
Technical Sales Hotline+91 99253 43026
Instant WhatsApp Support+91 70410 38728 (Instant Response)
Official Sales Emailinfo@raneymachinetools.com
Working HoursMonday - Saturday: 9:00 AM to 7:00 PM
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Our team can recommend the right model based on your thread diameter, pitch, material, and production volume requirements.