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Sandy Deng
Engineering Sales Lead, Nextas Tech · Specialist in zero-point clamping, self-centering vises, and CNC automation workholding.
About Sandy
Sandy Deng has spent the last decade walking machine shops through one question over and over: "Will this fixture actually hold tolerance after 200 changeovers?" She joined Nextas Tech in 2014 and now leads the engineering-sales team that helps CNC manufacturers across Europe, North America, and Southeast Asia specify zero-point systems, self-centering vises, dovetail fixtures, and full FMS automation cells.
Her work focuses on the practical layer that catalogue PDFs usually skip: pull-stud configuration to avoid over-positioning, seat-check verification for unmanned shifts, mixing 52 mm and 96 mm stud pitches on a single base plate, and right-sizing pull-down clamping force to actual cutter load rather than brochure peaks. She works directly with shop-floor engineers, reviews part prints, and ships engineering recommendations — not sales decks.
When she is not on a video call with a customer, Sandy publishes the technical guides on this site — the same selection criteria, comparison tables, and inspection checklists she uses internally with the Nextas Tech 250-engineer R&D team.
Areas of Expertise
Zero-Point Clamping Systems
52 mm / 96 mm stud pitch selection, taper-type vs. flat-datum positioning, <0.003 mm repeatability verification, mechanical self-locking and pneumatic boost configurations.
Self-Centering & 5-Axis Vises
Stack-up dimensions, tilt clearance, dovetail-jaw second-operation strategy, zero-point-compatible bases for 5-axis tombstone setups.
Custom Pneumatic & Hydraulic Fixtures
DFM review on customer drawings, clamping force budgets, deformation-sensitive part strategy, multi-station layouts for batch production.
Standalone Automation & FMS
Adding APC and robot loading to existing 3-axis or 5-axis machines, lights-out seat-check protocols, fixture stack-up for unmanned night shifts.
Credentials & Background
- 10+ years at Nextas Tech (NEXTAS CO., LTD), based at the Zhuhai 43,600 m² production base.
- Cross-functional liaison between the 250-engineer R&D team and overseas CNC buyers.
- Hands-on involvement in zero-point system commissioning for aerospace, semiconductor, mold & die, and EV-battery customers.
- Verified contact on the Made-in-China TÜV Rheinland audited profile.
- Working languages: English & Mandarin Chinese.
Selected Articles by Sandy
Selection Guide · 2026
Zero-Point Clamping System Selection Guide 2026
Six selection criteria, <0.003 mm repeatability targets, pull-down force sizing, and seat-check verification.
Selection Guide · 2026
CNC Workholding Guide: Dovetail Vise & Zero-Point
When to specify dovetail fixtures vs. zero-point systems, with a side-by-side comparison matrix.
Automation
Standalone Automation for CNC Machining Centers (2026)
Adding APC + robot loading to existing 3-axis or 5-axis machines without replacing the spindle.
Technical Note
Combo Zero-Point Plates — 52 / 96 mm Mixed Setups
How to mix stud pitches on one base plate and lay out a multi-station vise pallet.
5-Axis
5-Axis Self-Centering Vise — Zero-Point Compatible
Stack-up dimensions, tilt clearance, and 5-axis suitability check.
Custom Engineering
Custom-Made Pneumatic Fixtures
Engineering process for bespoke pneumatic clamping — from drawings to first-article inspection.
Browse the full Nextas Tech blog for more workholding and automation guides.
Have a fixture or automation project?
Send Sandy your machine model, part material, batch size, and tolerance target — she will reply with a practical workholding shortlist within one business day.