Bayerteq Dumbbell Specimen Maker BT SAM 12 – Tensile Bar Milling Machine
- Compact laboratory benchtop specimen router engineered for rapid preparation of dumbbell and dog-bone tensile test bars
- Full standards compliance with ISO 527, ISO 6259, ASTM D638, ISO 178, ISO 179/180, and ASTM D412
- Specimen milling thickness capacity up to 12 mm from raw plastic strips up to 250 mm long and 20–50 mm wide
- High-speed vertical routing spindle with top-mounted follower guide bearing for zero-distortion template profiling
- Interchangeable precision hardened steel templates for standard dog-bone geometries (Type 1A, Type 1B, Type I–V)
- Quick-action manual clamping bridge securely immobilizing raw polymer strips during manual or guided routing
- Ultra-compact benchtop footprint of 400 × 400 × 270 mm conserving laboratory workspace
- Low-maintenance 500 VA motor drive delivering smooth, burr-free edge surfaces without localized thermal degradation
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The specialized dumbbell specimen maker—model BT SAM 12—manufactured by Bayerteq is an ultra-compact, high-efficiency benchtop specimen shaping router designed specifically for laboratory preparation of standardized dumbbell (dog-bone) tensile bars, rectangular flexural bars, and impact test pieces. Compliant with international test methods established by ISO standards (including ISO 527 and ISO 6259) as well as ASTM D638, this robust system provides plastics testing laboratories, quality control departments, and pipe extrusion facilities with a rapid, economical alternative to large-scale CNC milling centers.
Accurate mechanical characterization of polymeric materials depends heavily upon specimen geometry and edge integrity. Rough saw marks, micro-cracks, or uneven necking along the gauge length induce notch-sensitivity concentrations that result in premature tensile failure and erratic elongation at break data. Operating as a dedicated dumbbell specimen maker, the Bayerteq BT SAM 12 utilizes a precision vertical milling spindle equipped with a top follower guide bearing and interchangeable master templates, ensuring perfectly parallel gauge edges and mirror-smooth radius transitions on test specimens up to 12 mm thick.
Bayerteq Dumbbell Specimen Maker: Template-Guided Precision
The BT SAM 12 is engineered for simplicity, durability, and high daily sample throughput in industrial quality assurance environments:
- Interchangeable Master Templates: Hardened tool steel templates correspond exactly to international standards (ISO 527 Type 1A/1B, ASTM D638 Type I/IV, and ISO 6259 pipe specimens), allowing operators to switch geometries in seconds.
- Top-Bearing Follower Spindle: The high-speed carbide helical milling cutter features an integrated top guide bearing that rolls smoothly against the template profile, preventing cutter chatter, thermal melt distortion, and tool deflection.
- Quick-Action Strip Clamping: Raw rectangular blanks (lengths up to 250 mm, widths from 20 to 50 mm) are firmly clamped beneath the template using quick-lock knurled knobs, ensuring slip-free machining.
- Compact Benchtop Footprint: Measuring just 400 × 400 × 270 mm with an energy-efficient 500 VA drive, the unit fits effortlessly onto any laboratory test bench without requiring dedicated compressed air or heavy industrial foundations.
For laboratories seeking dependable, low-maintenance tensile specimen preparation for polyolefins, PVC, and engineering plastics, the Bayerteq BT SAM 12 delivers exceptional repeatability and cost-effective productivity.
Bayerteq BT SAM 12 Dumbbell Specimen Maker – Technical Specifications
| Parameter | Specification Details |
|---|---|
| Model Designation | Bayerteq BT SAM 12 (BT-SAM Series) |
| Applicable Standards | ISO 527-2, ISO 6259-1/2/3, ASTM D638, ISO 178, ISO 179-1, ISO 180, ASTM D412 |
| Maximum Specimen Thickness | ≤ 12 mm (≤ 0.47 in) |
| Raw Strip Input Dimensions | Length: ≤ 250 mm | Width: 20 mm to 50 mm | Thickness: ≤ 12 mm |
| Routing Spindle Configuration | High-speed vertical spindle with carbide helical flute router cutter and top guide follower bearing |
| Template Compatibility | Hardened precision steel templates (ISO 527 Type 1A, 1B; ASTM D638 Type I, IV; ISO 6259, and custom geometries) |
| Worktable & Clamping | Polished low-friction metal work surface with knurled-screw rigid template clamping bridge |
| Drive Power & Electrical Supply | 500 VA motor drive | 380 VAC, 50 Hz (optional 220 VAC configuration available) |
| Physical Dimensions (L × W × H) | 400 × 400 × 270 mm (benchtop footprint) |
| Chassis Construction | Heavy-gauge sheet steel enclosure with vibration-damping leveling feet |
Key Engineering Advantages of Bayerteq BT SAM 12
Template-Guided Precision Routing
The top-mounted follower bearing rolls seamlessly along precision steel master templates, duplicating standard dog-bone contours without dimensional error.
Up to 12 mm Milling Depth
Handles thick thermoplastic compression plaques, extruded plastic sheets, and pipe longitudinal strips up to 12 mm thick in a smooth manual pass.
Minimal Heat & Burr-Free Finish
High-speed helical carbide tooling cuts cleanly through polymer chains, preventing frictional melt burnishing, flash, or stress-inducing micro-notches.
Compact Benchtop Architecture
With an ultra-compact 400 × 400 mm footprint, the BT SAM 12 fits readily onto standard laboratory benchtops next to tensile testing machines.
Quick-Change Standard Templates
Easily switch between ISO 527-2 Type 1A, Type 1B, ASTM D638 Type I, or custom specimen standards using simple knurled clamp screws.
Economical Sample Preparation
Delivers professional CNC-quality specimen edges at a fraction of the capital investment, maintenance requirements, and footprint of a full CNC mill.
Instrument Packages & Master Template Options
| System Package | Standard Inclusions | Optional Add-Ons |
|---|---|---|
| Bayerteq BT SAM 12 Base Unit | Benchtop steel enclosure, high-speed vertical spindle motor (500 VA), leveling feet, and workpiece clamping bridge. | External swarf extraction vacuum attachment and transparent protective eye-guard shield. |
| Milling Tooling | Solid carbide helical router bit with precision top follower guide bearing and collet wrench. | Replacement carbide cutter set and specialized diamond-coated router bits for reinforced plastics. |
| Master Templates | One standard hardened steel template (choice of ISO 527 Type 1A, Type 1B, or ASTM D638 Type I). | Complete template set (ISO 6259, ASTM D638 Type IV, ISO 178 flexural bar) and custom shape templates. |
Testing Standards & Industry Applications
| Standard / Method | Specimen Geometry & Material Testing Scope |
|---|---|
| ISO 527-2 (Type 1A & 1B) | Tensile dog-bone test specimens routed from compression-molded or extruded plastic sheets up to 12 mm thick. |
| ISO 6259 (Parts 1, 2, 3) | Longitudinal tensile test specimens cut from PE, PP, and PVC pipe walls for tensile yield and elongation verification. |
| ASTM D638 (Type I to V) | Standard dumbbell tensile specimens for rigid and semi-rigid plastics evaluated on universal testing machines. |
| ASTM D412 & ISO 37 | Dumbbell and straight test specimens for vulcanized rubber, elastomers, and thermoplastic elastomers (TPE). |
| Target Industry Sectors | Plastics recycling facilities, pipe extrusion quality control, sheet extrusion plants, university laboratories, and compounding workshops. |