Sunstone Zapp Plus 2 Review: Is It the Right Starter Welder for Your Business?
Who Is the Zapp Plus 2 For?
The Zapp Plus 2 is Sunstone's current flagship permanent jewelry welder for professional artists who are committed to the business. It sits between the entry-level Zapp (3–10 joules, $1,699) and the professional Orion mPulse (1–30J or 1–60J PRO, $2,400–$3,000+).
The artist this machine is designed for: someone who has decided permanent jewelry is a real business, not a side experiment, wants to offer the full standard metal range (gold-filled, sterling silver, and solid gold), does pop-up events and needs genuinely portable equipment, and wants a machine that will last through high appointment volume without being replaced in 12 months.
If you're testing whether permanent jewelry works for you before committing more capital, the base Zapp is more appropriate. If you're launching a full-time studio from day one and want the highest-spec professional platform with 60-joule range and Tru-Fire Technology, the Orion mPulse PRO is the upgrade path. The Zapp Plus 2 is for everyone in between — which is most serious permanent jewelry artists.
For the full range comparison across all Sunstone models, our best permanent jewelry welders guide covers every current option.
Watch this hands-on overview of the Sunstone Zapp Plus 2 in permanent jewelry use:
What Is in the Box?
Standard Zapp Plus 2 package contents (verify with current Sunstone listing at purchase as configurations can vary):
- Sunstone Zapp Plus 2 welder unit
- Orion welding stylus with 72-inch (6-foot) cord
- Auto-darkening lens (ADL) — model varies by package
- Set of tungsten electrodes (starter supply)
- Alligator clip ground leads
- Shielding gas hose
- Power cord (110V or 220V depending on configuration ordered)
- User documentation and safety guide
What is not in the box: Argon gas supply (cylinder or Argon Mini purchased separately), chain and jump ring inventory, hand tools (flush cutters, pliers), and display materials. For the complete all-in startup budget including every component needed for a first appointment, see our how much does a PJ kit cost guide.
Key Specs at a Glance
| Spec | Zapp Plus 2 |
|---|---|
| Energy range | 1–30 joules |
| Low-end increments | 1-joule steps throughout |
| Stylus cord length | 72 inches (6 feet), tip to tip |
| Stylus type | Detachable Orion stylus |
| Available stylus colours | Multiple (interchangeable) |
| Power input | 110V or 220V |
| Approximate weight | Similar to Zapp (~8–10 lbs) |
| Certifications | ETL and CE |
| Warranty | 3-year manufacturer's warranty |
| Sunstone Circle eligible | Yes ($15/month for lifetime warranty) |
| Approximate price | $2,400–$2,800 (welder only) |
The 1–30 joule range is the headline spec that separates this machine from the base Zapp (capped at 10J). That 20-joule gap is not theoretical — it's the difference between a machine that handles gold-filled only and a machine that handles the full standard permanent jewelry material set.
Build Quality and First Impressions
The Zapp Plus 2 is a purpose-built permanent jewelry welder, not a repurposed bench repair tool. Sunstone has been manufacturing pulse arc welders since 2006 and has accumulated over 100 million welds across their installed base — the product refinement over that history is visible in the Zapp Plus 2's fit and finish.
The unit itself is compact and clearly designed for mobility — it doesn't have the bulky footprint of the larger Orion bench machines. The control interface is clean and legible. The stylus connection is secure without being fiddly.
The 72-inch stylus cord is immediately noticeable if you're coming from a base Zapp or have read about the shorter cord being a limitation for anklet work. At 6 feet from tip to tip, you have genuine reach flexibility for working on anklets without awkward positioning.
The Orion stylus design (as of the 2024 redesign) has improved ergonomics over earlier versions and is available in multiple colour options — a small detail but one that artists who use their setup as part of their brand presentation appreciate.
Build quality overall: this is a commercial-grade tool, not a prosumer gadget. The chassis feels appropriately solid for a piece of equipment that will run several hundred appointments per year.
Ease of Use
Setup Out of the Box
The Zapp Plus 2 is designed to be operational quickly. Unpack, connect the stylus, attach the gas hose to your argon supply, plug in — and you're ready to run practice welds. The initial calibration involves setting your joule level for your specific chain and running a series of test welds on scrap material.
Most artists run their first test welds within 15–20 minutes of unboxing. The machine doesn't require programming, complex calibration sequences, or specialist tools to set up.
Interface and Power Controls
The interface is a digital display with joule level control and mode selection. Power adjustment is straightforward — increase or decrease in 1-joule increments. For most gold-filled work, you'll find your setting in the 3–10J range and stay there. Sterling silver work pushes you higher, typically 12–22J depending on chain gauge and jump ring diameter.
One limitation worth noting: the Zapp Plus 2 uses 1-joule increments throughout its range. The Orion mPulse and mPulse PRO offer 0.5-joule increments below 15 joules, which gives finer control at the low end. For most permanent jewelry work on standard chain, 1-joule steps are adequate. For artists who find themselves frequently working at the 3–6J range on very fine chain, the finer increments of the mPulse are a genuine advantage.
First Welds: Learning Curve
Most artists reach consistent, client-quality welds after 50–100 practice welds on their specific chain inventory. This is not the machine's limitation — it's the nature of the skill. Finding the right joule setting for each specific chain and jump ring combination, developing electrode positioning muscle memory, and learning to read the weld result all come with repetition.
The Zapp Plus 2's consistent arc makes the learning process reliable. When a weld doesn't look right, the issue is identifiable (wrong joule setting, electrode not positioned correctly, argon flow issue) and correctable. The machine doesn't introduce random variation that makes learning harder.

Welding Performance
Fine Chain and Jump Rings
The Zapp Plus 2's strongest application: closing the 1–2mm jump rings used in fine gold-filled permanent jewelry chain. At the correct joule setting (typically 3–8J for standard fine chain), the arc closes the jump ring with a clean, essentially invisible join. The weld point is smooth and flush with the chain links when done correctly.
The 1-joule minimum provides enough range at the low end to work on very fine chain without overshooting. Artists working with particularly delicate ultra-fine chain (sub-1mm) may want to dial down to 1–2J and verify their results — the Zapp Plus 2 handles this range, though the 1-joule stepping means less fine-tuning precision than the mPulse's 0.5-joule steps.
Gold-Filled and Sterling Silver
Gold-filled (14k or 12k gold-filled, standard chain gauges) is the Zapp Plus 2's primary material and where it delivers consistent, professional results without difficulty. The 1–30 joule range gives comfortable working margin above the typical gold-filled operating range.
Sterling silver requires higher joule settings than gold due to silver's high thermal conductivity — typically 12–22J for standard permanent jewelry gauge silver chain, higher for heavier gauges. The Zapp Plus 2 handles silver comfortably within its range. This is where the base Zapp (capped at 10J) falls short and the Zapp Plus 2 provides genuine additional capability.
Verify your silver weld settings on scrap before client appointments — silver welds differently than gold-filled and needs calibration per your specific chain supplier's material.
Solid Gold
Solid 14k gold welds at moderate joule settings — typically in a similar range to gold-filled for equivalent gauges, though solid gold chain often comes in heavier gauges that require slightly more energy. The Zapp Plus 2's range comfortably handles standard solid gold permanent jewelry chain.
Solid gold appointments are your highest-revenue service — typically $150–$300+ per bracelet — and the Zapp Plus 2 is fully capable of delivering the weld quality this premium service requires.
Weld Consistency Over a Long Session
At a busy pop-up event (8–12 appointments, 4–6 hours), the Zapp Plus 2 maintains consistent performance through the session without thermal issues at normal usage rates. The machine runs at low average power — the arc fires for milliseconds per appointment, not continuously — so the heat management demands are modest.
One practical note: electrode condition affects weld consistency. Keep your electrode sharpened to a fine point throughout a long session. A blunted electrode produces wider, less consistent arcs. Check and resharpen (using a diamond file or dedicated electrode sharpener) after every 20–30 welds at high volume pop-up rates.
Portability and Pop-Up Use
Weight and Footprint
The Zapp Plus 2 is a portable tool by design. Approximate weight of the base unit is similar to the Zapp at roughly 8–10 pounds — manageable for one person to carry and set up without assistance. The footprint on your table is compact; it doesn't dominate your workspace or crowd your chain display.
A complete pop-up setup — Zapp Plus 2 + Argon Mini + ADL + tools + chain display — fits comfortably in a standard carry case or small rolling bag. This is a setup you can genuinely take to a farmers market, boutique pop-up, bachelorette party, or bridal event without a vehicle specifically loaded for the purpose.
Stylus Cord Length
The 72-inch stylus cord (6 feet, tip to tip) is the Zapp Plus 2's most practically important upgrade over the base Zapp. Anklet appointments require significantly more reach than bracelet appointments — the client's ankle is further from your machine, your body positioning is different, and a short cord creates awkward compromises that affect weld quality and operator comfort.
With a 72-inch cord, you can position the machine on one side of your table and still have comfortable reach for an ankle weld without moving the client or the machine. The detachable stylus design also allows extension accessories to be added if additional reach is ever needed.
Running on a Goal Zero or Portable Power
For outdoor markets, boutique spaces with limited outlet access, or event spaces where you can't guarantee a convenient power outlet, a portable power station like the Goal Zero Yeti 500X or 1000X powers the Zapp Plus 2 through a full event. The machine's power draw is modest (the arc fires for milliseconds per weld, not continuously), so battery capacity is not a significant concern for a full day's pop-up appointments.
This compatibility with portable power stations removes one of the main logistical friction points for outdoor and mobile work — "is there a convenient outlet?" becomes irrelevant.

Zapp Plus 2 vs Original Zapp: What Changed?
The base Sunstone Zapp ($1,699) and the Zapp Plus 2 ($2,400–$2,800) share the same Sunstone permanent jewelry platform with several meaningful differences:
| Feature | Zapp | Zapp Plus 2 |
|---|---|---|
| Energy range | 3–10J | 1–30J |
| Stylus cord length | Standard (shorter) | 72 inches (6 feet) |
| Detachable stylus | No | Yes |
| Silver capability | Limited (10J ceiling) | Full (handles standard silver gauges) |
| Stylus colour options | Standard | Multiple |
| Price | ~$1,699 | ~$2,400–$2,800 |
The two upgrades that matter most in daily use: the extended energy range (the difference between being able to weld sterling silver reliably vs not), and the longer stylus cord (the difference between comfortable anklet appointments vs awkward workarounds).
The $700–$1,100 price difference between the Zapp and Zapp Plus 2 is recovered within a single season of serious business operation. For any artist who is committed to permanent jewelry as a real business — not just gold-filled bracelets occasionally — the Zapp Plus 2 is the more rational starting point.
Zapp Plus 2 vs Orion mPulse: When to Upgrade
Where the Zapp Plus 2 Reaches Its Limits
The Zapp Plus 2's practical ceiling for most artists: heavier-gauge platinum, extremely large jump ring diameters (where joule requirements push toward or above 30J), and applications requiring the finest joule control at the very low end (0.5J increments below 15J, which the mPulse offers).
In practice, most permanent jewelry artists run the Zapp Plus 2 for their entire business career without hitting these limits. The scenarios where the ceiling matters are: artists who frequently work with platinum and heavier gauge solid gold at scale, and artists doing very high volume who want the Tru-Fire Technology's misfire prevention in the mPulse PRO.
What the mPulse Adds
The Orion mPulse ($1,699–$2,500 base / $2,400–$3,000 PRO) adds to the Zapp Plus 2:
- 0.5-joule increments below 15J — finer control at the low energy end
- Orion mPulse PRO: 1–60 joule range — handles platinum and any material combination you'll encounter in permanent jewelry
- Tru-Fire Technology (PRO only) — Sunstone's proprietary system preventing misfires at very low joule settings
- Microscope system compatibility — full bench setup option for artists who want microscope-level precision
For artists doing 15–25+ appointments per week consistently, or running a studio alongside pop-ups at high volume — the mPulse PRO's Tru-Fire Technology and 60-joule ceiling start to earn their premium. For artists who are building toward that volume but aren't there yet: the Zapp Plus 2 is the right current tool with a clear upgrade path. Full mPulse comparison is in our Sunstone Orion mPulse review.

Warranty, Support and the Sunstone Circle
The Zapp Plus 2 comes with Sunstone's 3-year manufacturer's warranty, which covers manufacturing defects and provides a documented repair/replacement process through Sunstone's US-based support team.
The Sunstone Circle is Sunstone's optional ongoing warranty programme at $15/month ($180/year). Benefits include: effectively lifetime warranty coverage (the machine is repaired or replaced for as long as you maintain the subscription), free shipping both ways for warranty service, and access to a complimentary loaner machine during repair periods.
For any artist running the Zapp Plus 2 as a primary business tool — where a machine failure means cancelled appointments and lost revenue — the Sunstone Circle is worth the $15/month. The loaner machine provision alone eliminates the downtime risk that would otherwise create real business disruption. Think of it as equipment insurance with a very transparent cost.
Sunstone's customer service is US-based. Published feedback from the permanent jewelry community consistently cites Sunstone's support as responsive and technically competent. This is a meaningful differentiator from cheaper alternatives that offer no meaningful service infrastructure.
Verdict: Is the Zapp Plus 2 Worth It?
At $2,400–$2,800, the Zapp Plus 2 is a real money commitment for a starting permanent jewelry artist. Whether it's worth it depends entirely on what you're building.
For a genuine permanent jewelry business — regular pop-ups, growing client base, multiple metal options, Sunstone Circle warranty protecting your investment — yes, the Zapp Plus 2 is worth it. The energy range covers your full material set, the stylus reach handles anklets comfortably, the portability works for mobile use, and the warranty infrastructure protects your business continuity.
For a hobbyist testing the craft before committing, the base Zapp at $1,699 is more appropriate. For an artist launching a full-time high-volume studio from day one, step up to the mPulse PRO.
Buy It If...
- You're serious about permanent jewelry as a real business
- You want to offer gold-filled, sterling silver, and solid gold from launch
- You do pop-up events and need a portable machine with good anklet reach
- The 30-joule ceiling covers your anticipated material range
- You want the Sunstone Circle warranty protection for a business-critical tool
Skip It If...
- You're a first-time buyer uncertain whether permanent jewelry will work for you (consider the base Zapp first)
- You're launching a high-volume full-time studio and want the full professional spec from day one (consider the mPulse PRO)
- Your primary work is platinum and very heavy gauge where the 30J ceiling becomes a real constraint
- You want 0.5-joule increment control at the low end for very fine chain precision (the mPulse's advantage)
Frequently Asked Questions
What is the Sunstone Zapp Plus 2 price?
The Sunstone Zapp Plus 2 welder unit is priced at approximately $2,400–$2,800 depending on package configuration and whether accessories (ADL, additional chain, etc.) are included. Prices are set by Sunstone and sold through their direct website and authorised distributors — the welder price doesn't vary significantly between authorised sellers. The Sunstone Circle warranty plan adds $15/month ($180/year) if you opt in. For a full all-in cost breakdown including all the accessories needed for a complete first setup, see our how much does a PJ kit cost guide.
What is the difference between the Sunstone Zapp and Zapp Plus 2?
The base Zapp costs approximately $1,699 and has a 3–10 joule energy range with a standard stylus cord. The Zapp Plus 2 costs approximately $2,400–$2,800 and has a 1–30 joule range, a 72-inch (6-foot) detachable stylus cord, and multiple stylus colour options. The practical consequence: the Zapp handles gold-filled chain reliably but is at or beyond its ceiling for sterling silver. The Zapp Plus 2 handles gold-filled, sterling silver, and standard solid gold within its range. The longer stylus cord makes anklet appointments significantly more comfortable. For most artists starting a real permanent jewelry business, the Zapp Plus 2 is the better starting point.
Can the Zapp Plus 2 weld sterling silver?
Yes — the 1–30 joule range of the Zapp Plus 2 comfortably covers sterling silver permanent jewelry chain at standard gauges. Sterling silver typically requires 12–22J depending on jump ring diameter and wire gauge, which is well within the Zapp Plus 2's range. The base Zapp (capped at 10J) is at or beyond its limit for silver work. Always test your settings on scrap chain before client appointments when switching to a new material or chain supplier, as silver welds differently than gold-filled and needs per-material calibration.
Is the Sunstone Zapp Plus 2 good for pop-up events?
Yes — the Zapp Plus 2 is specifically designed with mobile and pop-up use in mind. The base unit is approximately 8–10 pounds and compact, the 72-inch stylus cord provides comfortable reach for anklet work, and the machine is compatible with portable power stations (Goal Zero Yeti range) for untethered outdoor use. A complete pop-up setup including the Zapp Plus 2, Argon Mini, ADL, and accessories fits in a carry case. Sunstone's own marketing for the Zapp line specifically highlights pop-up and mobile permanent jewelry use.
Should I buy the Zapp Plus 2 or the Orion mPulse?
For most artists starting a serious permanent jewelry business, the Zapp Plus 2 is the right choice. It covers the full standard permanent jewelry material range (gold-filled, sterling silver, standard solid gold), has the reach needed for anklets, and is $600–$1,200 less than the mPulse PRO depending on configuration. The mPulse PRO earns its premium when you need: 0.5-joule increments at the low end for ultra-fine chain precision, the 60-joule ceiling for platinum and heavier gauge, or Tru-Fire Technology's misfire prevention at high appointment volume. If you're unsure which applies to you: start with the Zapp Plus 2, run your first season, and upgrade to the mPulse PRO when you've identified a specific limitation you're hitting regularly.
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