Durston 1127 Spring Loaded Planishing Hammer 3-1/4" (80mm) Top Platen - 125.379

Durston 1127 Spring Loaded Planishing Hammer 3-1/4" (80mm) Top Platen - 125.379

The Durston 1127 Spring Loaded Planishing Hammer is a heavy-duty bench tool built for jewelers and metalsmiths who demand perfectly flat surfaces with minimal effort. A single blow from the spring-loaded upper platen is all it takes to straighten and true sheet metal, making it an indispensable workhorse for production and repair work alike. Both platens are hardened to Rockwell 60 (60 HRC), making them well suited for flattening non-ferrous soft metal alloys including copper, brass, silver, and gold.

This large-format unit — model 1127 — is engineered for years of heavy-duty use. The substantial base footprint provides stable, controlled operation, while the overall construction reflects Durston's reputation for professional-grade metalworking equipment. Made in the UK.

Features

• Spring-loaded upper platen delivers consistent, even planishing force with each stroke
• Both platens hardened to 60 HRC for long-lasting durability
• Suitable for flattening copper, brass, silver, gold, and other non-ferrous soft metal alloys
• Large top platen (80 mm / 3-1/4") and bottom platen (100 mm / 4") for broad surface coverage
• Heavy-duty construction designed for sustained professional use
• Wide, stable base footprint minimizes movement during operation
• Made in the UK

Specifications

What our Experts Think

• Spring-Loaded Precision Flattening System
  The Durston 1127 Planishing Hammer uses a spring-loaded mechanism to deliver controlled, repeatable strikes for fast and accurate metal flattening.
• Large 80mm Top Platen for Efficient Work
  The 3-1/4" (80mm) upper platen provides a broad working surface, making it ideal for smoothing larger sheet areas quickly and evenly.
• Heavy-Duty Workshop Construction
  Built with a rigid cast-iron frame and weighing over 20kg, it stays stable during use and withstands continuous professional workshop demands.
• Hardened Precision Working Surfaces
  The platens are hardened for durability and consistent performance, suitable for copper, brass, silver, and gold without deformation over time.
• Time-Saving Alternative to Hand Hammering
  Replaces repetitive manual planishing, delivering faster surface finishing with improved consistency and reduced operator fatigue.
• Ideal for Sheet Metal Refinement
  Perfect after rolling or cutting, helping restore perfectly flat surfaces before polishing or fabrication steps.
• Professional Jewellery Workshop Tool
  Designed for goldsmiths and metalsmiths who need reliable, repeatable surface finishing in production or custom work environments.

Q&A

Q: What is the Durston 1127 Spring Loaded Planishing Hammer 3-1/4" (80mm) Top Platen (125.379)?
A: It is a heavy-duty spring-loaded planishing press hammer designed for jewelers and metalsmiths to quickly flatten, straighten, and repair sheet metal with controlled impact and high precision.

Q: What is it used for?
A: It is used to smooth and level metal surfaces, remove distortion after rolling or cutting, and create perfectly flat sheet metal in jewelry fabrication and metalworking.

Q: What materials can it be used on?
A: It works best on gold, silver, copper, brass, and other non-ferrous soft metals, commonly used in jewelry making.

Q: How does a spring-loaded planishing hammer work?
A: You place the metal between the platens, and the spring mechanism delivers controlled, repeatable impacts, allowing fast flattening without uneven hammer marks.

Q: Is it suitable for professional use?
A: Yes, it is built for professional jewelry workshops and metal fabrication environments, where precision flattening and surface correction are required.

Q: What is the main advantage of this tool?
A: It provides fast, uniform flattening with minimal effort, replacing repetitive hand hammering and improving consistency in sheet metal finishing.

Maintenance Tips

• Clean after every use – Wipe both the upper and lower platens to remove metal dust and residue. This prevents scratching and keeps the pressing surface smooth for accurate flattening.
• Light rust protection – Apply a thin film of machine oil on the steel body and platens when idle to prevent corrosion, especially in humid workshop conditions.
• Keep platens scratch-free – The hardened 80mm top platen is precision-ground; avoid using abrasive tools or dropping hard objects onto the surface to maintain flatness and accuracy.
• Check spring action regularly – Ensure the return spring operates smoothly and fully resets after each strike; add light lubrication if movement becomes stiff.
• Secure mounting is essential – Bolt the unit firmly to a stable bench or stand to absorb repeated impact force and maintain alignment during use.
• Avoid over-force impacts – Use controlled, vertical strikes only; excessive force can stress the spring mechanism and reduce tool lifespan.
• Dry storage only – Store in a clean, dry environment and cover when not in use to prevent dust buildup and moisture damage.
• Inspect periodically – Check frame bolts and platen alignment to ensure consistent flat results and safe operation.