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5-Axis Dovetail Fixture for 52 mm / 96 mm Quick-Change Systems
Single-station P50 and three-station P90 layouts for five-side machining with a compact 45° dovetail grip.
The NEXTAS dovetail fixture family is built for shops that want more five-side access without committing a large amount of sacrificial stock. Choose between the compact single-station P50 and the higher-throughput three-station P90, then match the fixture to a 52 mm or 96 mm quick-change foundation for repeat jobs, pallet setups, and automation handoff.
Best fit
Choose this route when spindle access matters more than full-body support
A strong fit for smaller blanks, repeat parts, and five-side machining where the shop wants minimal stock waste, easier tool access, and fast reuse on quick-change bases.
Compare first
Lock the interface family before comparing every model code
The faster selection path usually starts with 52 vs 96 system compatibility, pallet or zero-point usage, and whether the project needs single-part stiffness or higher fixture density.
Send table size, dovetail format, and 5-axis travel details
We match your 5-axis setup to the right 52 mm or 96 mm dovetail configuration, recommend jaw options, and confirm zero-point compatibility.
5-axis machine & table layout
Provide the machine model, table dimensions, 5-axis travel envelope, and whether the dovetail fixture mounts directly or through an existing zero-point plate.
Workpiece geometry & side access
Share the part material, blank size, dovetail format preference (52 mm or 96 mm), number of sides to machine per setup, and surface finish requirements.
Finish quality & multi-station goals
Specify repeatability tolerance, whether you need single- or triple-station density, target cycle time per part, and any robot or pallet-pool integration planned.
Choose the foundation first
52 mm or 96 mm: start with part and process fit
Use these three routes to shortlist a system before comparing models. Final fit depends on the selected model, approved interface drawing, machine envelope, payload, cutting load, and process validation.
When to choose System 52
Best for small to mid-size parts, tight machine envelopes, and high-density arrays. Great for quick prototype-to-production changeovers on 3-axis/4-axis/5-axis machines.
- High station density on a compact plate
- Fast swapping on System 52 zero-point receivers
- Lower mass for rapid robot handling
When to choose System 96
Use System 96 for heavier cuts, larger parts, or when you need maximum rigidity on pallets and automation cells.
- Wider base improves stability
- Pairs well with larger zero-point plates/pallets
- More room for stops, locators, and chip evacuation
Automation & palletization tips
For lights-out production, combine a dovetail fixture with a zero-point plate and pallet changer so station exchange, touch-off, and requalification follow the validated process.
- Combine with a pneumatic zero-point plate to support repeatable setup exchange; touch-off and requalification remain process-dependent
- Add an automatic pallet changer for unattended lights-out shifts
- Run multiple fixtures per pallet to keep the spindle cutting while setups happen off-machine
Technical Specifications
The 52 mm and 96 mm interface path depends on the selected model and approved drawing. Use the dimensional views below for initial comparison, then request the applicable project drawing before integration.
Catalogue Model Matrix
NEXTAS offers two pneumatic dovetail fixture families in the 2025 catalogue — the NT-S500P50 single-station series for compact parts and the NT-S600P90 three-station series for higher throughput. Both share a common 6583-Z dovetail-jaw platform, so operators can swap jaw widths across machines without re-learning the fixture.
| Product code | Dovetail jaw | Jaw width | Blank thickness | Blank length | Blank width |
|---|---|---|---|---|---|
| NT-S500P50 — Single-station pneumatic dovetail fixture · 4 kN clamping · <0.02 mm repeatability · hardened stainless steel · 6.5 kg | |||||
| NT-S500P50V1 | 6583-Z4 | 10.5 mm | 12–30 mm | ≤100 mm | ≤120 mm |
| NT-S500P50V2 | 6583-Z6 | 14.5 mm | 20–50 mm | ≤100 mm | ≤120 mm |
| NT-S500P50V3 | 6583-Z8 | 18.5 mm | 25–60 mm | ≤100 mm | ≤120 mm |
| NT-S500P50V4 | 6583-Z12 | 26.5 mm | 30–70 mm | ≤120 mm | ≤150 mm |
| NT-S500P50V5 | 6583-Z16 | 34.5 mm | 40–100 mm | ≤120 mm | ≤150 mm |
| NT-S600P90 — Three-station pneumatic dovetail fixture · >2.5 kN clamping · ≤30 kg load per station · hardened stainless steel · 6.5 kg | |||||
| NT-S600P90V1 | 6583-Z4 | 10.5 mm | 12–30 mm | ≤100 mm | ≤120 mm |
| NT-S600P90V2 | 6583-Z6 | 14.5 mm | 20–50 mm | ≤100 mm | ≤120 mm |
| NT-S600P90V3 | 6583-Z8 | 18.5 mm | 25–60 mm | ≤100 mm | ≤120 mm |
| NT-S600P90V4 | 6583-Z12 | 26.5 mm | 30–70 mm | ≤120 mm | ≤150 mm |
| NT-S600P90V5 | 6583-Z16 | 34.5 mm | 40–100 mm | ≤120 mm | ≤150 mm |
Choose NT-S500P50 when
You machine one blank per cycle, need the smallest pneumatic dovetail footprint on a compact table, or want a dedicated single-station fixture for short runs and prototypes.
Choose NT-S600P90 when
You want to run three identical or similar parts per cycle to maximize spindle uptime, reduce per-piece load/unload time, and raise throughput on a single machine table.
Dovetail jaw selection (6583-Z series)
The 6583-Z4 through Z16 jaws cover 10.5 mm to 34.5 mm dovetail widths. Select the jaw size based on blank thickness and desired clamping envelope — Z4/Z6 for thin plates, Z12/Z16 for thicker stock up to 100 mm.
Five-Side Machining Efficiency
The dovetail fixture clamps the workpiece along a small 45° dovetail, leaving the top, front, back and two sides completely unobstructed for cutting. This design enables true five-side machining in a single setup and reduces the extra material normally required for gripping, saving both time and raw material costs.
Precision & Repeatability
The dovetail fixtures use locating features and reference surfaces to control seating when parts are changed. Actual machining accuracy and finish still depend on the prepared dovetail, cutter load, overhang, setup stiffness, and the acceptance checks used on the machine.
- Compact dovetail clamping for small-plate machining on 3-, 4- and 5-axis machines.
- Adjustable clamping position with selectable pressing plates.
- Support column with scale adjustment for precise hold-down placement.
- Side U-shaped groove avoids tool interference during side machining.
- Optional 3R or Erowa spigot positioning interfaces.
Modular & Zero-Point Compatible
The fixture can follow a 52 mm or 96 mm interface path. Compatibility with a zero-point plate, quick-change system, or automation pallet depends on the selected model and approved interface drawing; station density and changeover performance remain machine- and process-dependent.
Applications & Use Cases
Case Study: Industrial Automation
The dovetail fixture works with the pneumatic zero-point plate, enabling fast, precise clamping of thin-sheet products in industrial automation. A pre-milled dovetail can support controlled seating when its geometry, contact faces, clamp condition, and on-machine process are validated for the run.
Complex 5-Axis Machining
Ideal for titanium and aerospace parts requiring full-surface access. The dovetail fixture exposes five faces, allowing intricate features to be milled in one setup without repositioning.
Quick Change & Automation
A selected 52 / 96 mm interface can support job changeovers after the fixture, receiver, and pallet stack are verified against the approved drawings. Robotic pallet-changer use depends on payload, clearance, controls, and cell-level process validation.
Material Versatility
Material suitability depends on the blank geometry, prepared dovetail, cutting load, support strategy, and validated clamp position. Verify distortion and stability on the target process before prototype or series production.
Selection & Zero-Point Integration
Plan dovetail workholding like a system: fixture size, zero-point base, pallet/automation strategy, and chip/coolant flow all affect real-world repeatability.
System 52 vs System 96: quick decision table
Use this decision matrix when you’re choosing a 45° dovetail fixture for 5-axis machining and a zero-point clamping stack. It’s a fast way to align part size, cutting load, and automation needs.
Tip: If you’re building a palletized cell, pair the fixture with a zero-point plate so station exchange, touch-off, and requalification follow the validated process.
5-Side Machining Best Practices
A clean, consistent 45° dovetail is the difference between “it holds” and “it runs production.” These steps help you get stable clamping and predictable cycle times.
1. Machine a consistent 45° profile
Use a matching dovetail cutter and keep the depth consistent across batches. Deburr the profile so the fixture seats fully.
2. Control part distortion
Clamp close to stiff regions. For thin or window-style parts, use support columns/pressing plates to avoid bending.
3. Validate with a trial cut
Run a short rough+finish program, then check key datums. If needed, add stops/locators to prevent axial slip.
4. Keep interfaces clean
Chip contamination is the #1 enemy of repeatability—clean the dovetail and the zero-point interface before every swap.
Next step
Share your part size, material, and machine model. We’ll propose a proven 45° dovetail workholding setup (fixture size, station layout, and zero-point stack) to match your tolerance and takt time.
Troubleshooting & Repeatability
Even a great 45° dovetail fixture can lose repeatability if chips, distortion, or excessive tool load creep in. Use this quick table to diagnose the most common issues in 5-axis dovetail workholding and zero-point setups.
If you’re running lights-out production, pair this fixture with a pneumatic zero-point plate and pallet changer so docking is consistent across stations.
Dovetail Fixture Selection ChecklistClick to expandClick to collapse
Dovetail Fixture Selection & Evaluation Checklist
Verify fit, rigidity, and automation-readiness before committing the clamping stack to production.
Part & process
- Material (aluminum / steel / titanium) and target metal-removal rate
- Geometry: thin-wall, window-frame, or tall contours
- Tolerance target and whether you need to swap without re-indicating
Compatibility & standards
- System 52 vs System 96 based on load and station density
- Zero-point base/pallet (grid, clearance, chip evacuation)
- Automation: robot handling, pallet changer, buffer capacity
Dovetail preparation
- 45° profile: depth/width reproducible across batches
- Deburr and check seating (no chips on contact faces)
- Add stops/locators for high-torque or side-milling operations
Evidence & support
- On-machine photos/videos showing tool clearance
- Measurement report/inspection excerpt for multi-side results
- Spare-parts plan (screws/pins) and maintenance recommendation
Selection • Integration • Maintenance CheatsheetClick to expandClick to collapse
Selection • Integration • Maintenance Cheatsheet
The 5-axis dovetail fixture grips raw stock with a 45-degree dovetail profile, exposing five sides for machining in a single setup. This cheatsheet covers dovetail depth and material selection, integration onto zero-point plates, and maintaining consistent grip force and surface finish over long production runs.
1) Selection: pick the right configuration
2) Integration: what to prepare before install
3) Maintenance: keep repeatability stable
Need a dovetail cutter recommendation, clearance simulation, or fixture layout for your 5-axis machine?
Contact usFrequently Asked Questions
How much material do I need to prepare for the 45° dovetail?
For optimal clamping, prepare a 45° dovetail on the raw stock with a depth of about 3–5 mm. This small engagement delivers strong pull-down holding while keeping five faces open for machining, reducing stock waste versus traditional vises.
What is the primary difference between the 52 mm and 96 mm dovetail fixtures?
It’s mainly the mounting pattern and scale. System 52 is great for smaller parts and high-density setups. System 96 offers a wider footprint and pairs with larger zero-point plates/pallets for heavier parts and maximum stability.
Can I use these dovetail fixtures on a 3-axis or 4-axis machine?
Yes. Even on 3-axis/4-axis machines, dovetail workholding improves rigidity and tool access, and it speeds up changeovers—especially for high-mix production.
What dovetail angle and cutter do you recommend?
The fixtures are designed around a 45° dovetail. Use a matching dovetail cutter sized to your stock and leave a clean, burr-free profile. If you’re unsure, share your part drawing and material and we’ll recommend a proven dovetail spec.
How does this dovetail fixture compare to a self-centering vise for 5-side machining?
A self-centering vise grips two parallel sides, which blocks tool access and needs taller stock. A dovetail fixture grips a small 45° profile at the base, creating pull-down clamping and leaving five faces unobstructed—ideal for true 5-side machining.
How do I prevent part pull-out or vibration during aggressive machining?
Keep overhang low, ensure the dovetail is consistent and deburred, and match fixture size to load (System 96 for heavier cuts). For high torque operations, add stops/locators where needed and validate the process with a trial cut and inspection.
Is it suitable for thin plates or window-style parts?
Yes. For thin or window-style parts, use the appropriate pressing plates/support columns and place the clamp point close to the stiffest area of the part to minimize distortion.
How repeatable is swapping parts when combined with a zero-point plate or pallet?
Repeatability depends on the zero-point base and your dovetail consistency. With clean interfaces, consistent dovetail prep, and proper seating, many shops can swap parts quickly with minimal touch-off—always verify to your tolerance requirements.
Resources & Downloads
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