Bayerteq Dumbbell Specimen Maker BT SAM 70 – Heavy-Duty Tensile Bar Milling Machine
- Heavy-duty 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
- High-capacity milling thickness depth up to 70 mm from raw plastic blanks up to 250 mm long and 20–50 mm wide
- Extended-height vertical routing spindle with top follower guide bearing for smooth, distortion-free template profiling
- Interchangeable precision hardened steel templates for standard dog-bone geometries (Type 1A, Type 1B, Type I–V)
- Heavy-duty dual clamping bridge securely immobilizing thick polymer blocks and multi-layer pipe wall strips
- Reinforced benchtop chassis of 400 × 400 × 440 mm providing robust stability without vibration
- 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 70—manufactured by Bayerteq is a high-capacity, heavy-duty benchtop specimen shaping router designed specifically for laboratory preparation of standardized dumbbell (dog-bone) tensile bars, rectangular flexural bars, and impact test pieces from thick polymer sections. Compliant with international test methods established by ISO standards (including ISO 527 and ISO 6259) as well as ASTM D638, this heavy-duty system provides plastics testing laboratories, pipe extrusion manufacturers, and raw material producers with the unique capability to profile thick specimens up to 70 mm deep in a single setup.
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 an extended-capacity dumbbell specimen maker, the Bayerteq BT SAM 70 utilizes a high-rigidity vertical milling spindle equipped with a top follower guide bearing and interchangeable master templates, ensuring perfectly parallel gauge edges and mirror-smooth radius transitions even across thick-walled pipe coupons and compression-molded plaques up to 70 mm in thickness.
Bayerteq Dumbbell Specimen Maker: Deep-Profiling Template Precision
The BT SAM 70 builds upon the proven design of the BT-SAM series, expanding thickness capability to address the demanding sample preparation requirements of modern large-diameter thermoplastic pressure pipes and heavy-gauge industrial plastics:
- Extended 70 mm Depth Capacity: Engineered with an extended vertical spindle travel and reinforced guide column, the BT SAM 70 profiles specimen depths up to 70 mm, accommodating thick HDPE, PP, and PVC pipe wall segments without requiring preparatory thinning or surface planing.
- 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.
- Heavy-Duty Workpiece Clamping: Raw rectangular blanks (lengths up to 250 mm, widths from 20 to 50 mm, depths up to 70 mm) are firmly immobilized beneath the template using heavy-duty knurled clamping bridge screws, ensuring slip-free machining under heavy cutting loads.
- Sturdy Benchtop Chassis: Measuring 400 × 400 × 440 mm with an energy-efficient 500 VA drive, the unit delivers industrial-grade rigidity in a compact benchtop footprint suitable for quality assurance laboratories.
For testing laboratories seeking dependable, repeatable tensile specimen preparation for thick-walled plastic pipes, fittings, and engineering polymers, the Bayerteq BT SAM 70 delivers unmatched depth capacity and long-term operating reliability.
Bayerteq BT SAM 70 Dumbbell Specimen Maker – Technical Specifications
| Parameter | Specification Details |
|---|---|
| Model Designation | Bayerteq BT SAM 70 (XYZ-70 Series) |
| Applicable Standards | ISO 527-1, ISO 527-2, ISO 6259-1/2/3, ASTM D638, ISO 178, ISO 179-1, ISO 180, ASTM D412 |
| Maximum Specimen Thickness (Depth) | ≤ 70 mm (≤ 2.76 in) |
| Raw Strip Input Dimensions | Length: ≤ 250 mm | Width: 20 mm to 50 mm | Depth: ≤ 70 mm (XYZ-70) |
| Routing Spindle Configuration | Extended vertical high-rigidity spindle with helical carbide 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 System | Polished low-friction metal worktable with heavy-duty dual-post clamping bridge for deep specimens |
| Drive Power & Electrical Supply | 500 VA motor drive | 380 VAC, 50 Hz (optional 220 VAC configuration available) |
| Physical Dimensions (L × W × H) | 400 × 400 × 440 mm (reinforced benchtop footprint) |
| Chassis Construction | Heavy-gauge sheet steel enclosure with vibration-damping leveling feet and blue Bayerteq accent trim |
Key Engineering Advantages of Bayerteq BT SAM 70
Deep 70 mm Machining Capacity
Profiles specimens up to 70 mm deep in a single setup, ideal for thick-walled pressure pipes (PE 100-RC, PP-R, PVC-O) and thick compression molded plaques.
Template-Driven Accuracy
Follower guide bearing duplicates template contour with zero deviation, eliminating stress-raising notch defects along tensile test gauge lengths.
Heavy-Duty Clamping Rigidity
Extended dual-column clamping bridge holds thick plastic blanks firmly against the table, preventing workpiece flutter or chatter during routing.
Smooth Burr-Free Finish
Precision helical carbide router cutter delivers mirror-smooth edge transitions without thermal degradation or plastic melting at high feed speeds.
Standard Configuration & Optional Tooling
| Component | Standard Supply | Optional Add-Ons |
|---|---|---|
| Bayerteq BT SAM 70 Base Unit | Heavy-duty steel enclosure (440 mm height), extended high-speed vertical spindle motor (500 VA), leveling feet, and dual-column clamping bridge. | External swarf extraction vacuum attachment and transparent protective eye-guard shield. |
| Milling Tooling | Solid carbide helical router bit with extended flute length, precision top follower guide bearing, and collet wrench. | Replacement carbide cutter set and specialized diamond-coated router bits for glass-filled or abrasive polymers. |
| 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. |
Target Industries and Testing Applications
- Thick-Walled Thermoplastic Pipe Extrusion: Preparation of ISO 6259 tensile test coupons from heavy-wall HDPE (PE100, PE100-RC), PP-R, PP-RCT, and PVC pressure pipes up to 70 mm wall thickness.
- Raw Material Compound Characterization: Routing standardized dumbbell test specimens (ISO 527-2 Type 1A / 1B, ASTM D638 Type I / IV) from compression-molded plaques and thick slabs.
- Rotomolding & Heavy Sheet Fabrication: Milling dog-bone tensile specimens from rotational molded tanks, heavy geomembranes, and thick structural plastic sheets.
- Third-Party Certification Laboratories: High-throughput, dependable sample preparation for accredited testing institutions verifying compliance with European and international quality standards.