Baby Lock Acclaim - 4-Thread Serger
Baby Lock Acclaim - 4-Thread Serger
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Product Information
Baby Lock
Acclaim
Experience the ultimate in standalone overlocking with the Baby Lock Acclaim (BLES4) — Baby Lock's premier 4-thread standalone serger, combining effortless push-button pneumatic threading with unmatched stitch precision. Featuring RevolutionAir™ Threading for loopers and needles, the Automatic Thread Delivery™ (ATD) system to eliminate tension dials, an expanded 2" throat space, and Baby Lock's exclusive Wave Stitch, the Acclaim delivers professional-grade seams, rolled hems, and decorative edges on any fabric.
Push-Button Simplicity: Thread both loopers and needle eyes sequentially or simultaneously with a touch of a button. The Automatic Thread Delivery™ (ATD) system calculates and feeds the exact thread length required, preventing tension frustrations regardless of fabric thickness.
Decorative Seaming Options: Creates decorative Wave and Reverse Wave stitches alongside standard 4-thread overlocking, 3-thread wide/narrow seaming, 3-thread flatlock, 3-thread rolled hems, and 2-thread flatlock edges.
Room to Maneuver: Offers 2 inches of workspace to the right of the needle, allowing easy fabric maneuvering when finishing garment seams or embellishing quilt edges. Illuminated by 3 ultra-bright LED lights.
Professional Fabric Handling: Vertical needle design prevents needle deflection on tough, multi-layered seams. Features a heavy-duty cutting knife and differential feed (0.6:1 to 2.0:1 ratio) to eliminate puckering or stretching.
RevolutionAir™ Threading
Threading Both Loopers and Needles With One Button
Threading a 4-thread serger by hand usually means working through loopers and needles separately, in careful sequence, hoping you didn't skip a step. RevolutionAir™ threads both loopers and needle eyes together at the touch of a button — sequentially or simultaneously — so setup that used to take several minutes of careful hand-threading now takes seconds, with no risk of threading out of order.
Automatic Thread Delivery™
Never Touch a Tension Dial Again
Dialing in serger tension by hand for every new fabric or thread combination is one of the most frustrating parts of learning to serge. The Automatic Thread Delivery™ (ATD) system calculates and feeds the exact thread length required for each stitch automatically, so tension stays balanced regardless of fabric thickness — no test scraps, no trial and error.
4/3/2 Thread Capability
Every Stitch Type a Standalone Serger Needs
From a delicate 2-thread flatlock edge to a full 4-thread overlock seam, the Acclaim covers the entire range a standalone serger is built for — 3-thread wide and narrow seaming, 3-thread flatlock, 3-thread rolled hems, and 2-thread flatlock, all without swapping machines or attachments.
2" Throat Space
Room to Maneuver Without Fighting the Machine
A cramped throat space makes finishing garment seams or embellishing quilt edges harder than it needs to be. The Acclaim's 2 inches of workspace to the right of the needle gives you enough room to reposition and maneuver fabric freely, whether you're working a straight seam or curving around a quilt edge.
3 Ultra-Bright LED Lights
See Every Stitch Clearly
Serging with poor lighting means squinting to see thread color, stitch placement, or whether a seam is tracking straight. Three ultra-bright LED lights illuminate the needle area and expanded throat space directly, so visibility stays sharp no matter what room you're working in.
Speed & Presser Foot Pressure Dial
Speed and Pressure, Under Your Control
Stitching speed up to 1,500 stitches per minute keeps projects moving, and a dedicated presser foot pressure dial lets you fine-tune how firmly the foot grips the fabric — lighter for delicate materials, firmer for heavier layers — without needing to guess or improvise a workaround.
Heavy-Duty Cutting System
Cut Cleanly Through Tough, Multi-Layered Fabric
A standard blade can struggle with thick seams or multiple fabric layers, leaving a ragged edge or jamming mid-cut. The Acclaim's heavy-duty cutting system is built to trim through tougher material cleanly, so the edge finish stays consistent even on demanding projects.
Vertical Needle Penetration
Needles That Protect Your Fabric
Angled needles can push against fabric and cause deflection or damage over time, especially on thick or multi-layered seams. The Acclaim's vertical needle design travels straight up and down instead, protecting fabric and preventing the skipped or uneven stitches that needle deflection causes.
Differential Feed Ratio
Feeding That Adjusts to What You're Sewing
Sheer fabrics tend to pucker and knits tend to stretch when fed through a serger at a fixed rate. The Acclaim's differential feed ratio adjusts from 0.6:1 to 2.0:1, letting you dial in exactly how much the front and back feed dogs pull relative to each other — smoothing out puckering on delicate fabric or preventing stretch on knits.
Key Features
- RevolutionAir™ Threading: Threads loopers and needle eyes at the touch of a button.
- Automatic Thread Delivery™ (ATD): Delivers balanced stitches automatically without tension dials.
- 2" Throat Space: Expanded clearance to the right of the needle for maneuvering thick fabrics and larger projects.
- Exclusive Wave Stitch & Reverse Wave Stitch: Decorative edge finishing built directly into the machine.
- Stitching Speed & Presser Foot Pressure Dial: Rapid stitching up to 1,500 SPM with a dedicated pressure dial.
- 3 LED Workspace Lights: Illuminate the needle area and expanded throat space.
- 4/3/2 Thread Serging: Full-featured rolled hemming and flatlock capabilities across thread counts.
- Vertical Needle Penetration & Differential Feed: Prevents needle deflection, with a 0.6:1 to 2.0:1 feed ratio.
Included Accessories
- Not yet confirmed: This spec sheet lists no included accessories — a gap shared with the Sashiko. Confirm with Baby Lock before publishing.
Details
Product Details
| Stitch Types | 4/3/2-Thread Overlocking, Flatlock, Rolled Hems, Wave Stitch & Reverse Wave Stitch |
| Maximum Stitching Speed | 1,500 SPM |
| Stitch Width / Length | 1.5mm – 7.5mm Width / 0.75mm – 4.0mm Length |
| Differential Feed Ratio | 0.6:1 to 2.0:1 (Gathering/Stretching) |
| Machine Dimensions | 17.2"W x 13.9"D x 12.8"H |
| Throat Workspace Distance | 2" to the right of the needle |
| Machine Weight | 24.6 lbs |
| Needle System | Organ HAx1SP / 15x1SP Needles |
Baby Lock Warranty Coverage
Baby Lock machines are built for sewists who want precision without the frustration. The Acclaim's warranty reflects that same commitment to quality.
- Limited Casting Warranty — 25 years
- Parts — 10-year warranty
- Circuit Boards — 5-year warranty
- Electrical Components — 5-year warranty
- Labor & Adjustments — 1 year free, performed by an authorized Baby Lock retailer
Baby Lock's warranty is one of the strongest in the industry. It covers manufacturer defects in materials and workmanship. Normal wear items (needles, belts, light bulbs) are excluded. Must be purchased from an authorized Baby Lock retailer — registering your product is strongly recommended to avoid needing the original receipt for service.
Your Baby Lock warranty is valid at any authorized retailer nationwide — take your machine anywhere for service.
Why Buy From Us
When you buy from Sew It Online, you're covered — before, during, and after the sale.
- Real Support When You Need It — call us first. Our techs and education specialists solve a lot over video, find you a local repair shop, or walk you through shipping it back. Just keep your box.
- Warranty Valid at Any Authorized Dealer — your coverage travels with you. Take your machine anywhere for service, no questions asked.
Plus, every machine purchase includes access to our full education library — see the Education tab.
What Education Is Included
Every machine purchase includes access to our full education library:
- ✂️ Sew What's Possible Challenge — start sewing real projects fast.
- 📚 Beyond The Basics — level up your technique.
- 🧵 Machine Maintenance Course — keep your machine running right.
- 🏆 From Box to Confidence — sewing the same day it arrives.
Questions
Frequently Asked Questions
How does RevolutionAir™ Threading work on the Baby Lock Acclaim?
Do I still need to set tension manually on the Acclaim?
What is the Wave Stitch on the Baby Lock Acclaim?
What is the warranty on the Baby Lock Acclaim?
What's Included & Why Sew It Online
Everyone sells this machine for the same price.
Only we teach you how to use it.
When you buy from Sew It Online, you’re covered — before, during, and after the sale.
- Real Support When You Need It — call us first. Our techs and education specialists solve a lot over video, find you a local repair shop, or walk you through shipping it back. Just keep your box.
- Warranty Valid at Any Authorized Dealer — your coverage travels with you. Take your machine anywhere for service, no questions asked.
Plus, every machine purchase includes access to:
✂️ Sew What’s Possible Challenge start sewing real projects fast.
📚 Beyond The Basics level up your technique.
🧵 Machine Maintenance Course keep your machine running right.
🎬 Episodes Fresh content that keeps you inspired
🏆 From Box to Confidence sewing same day it arrives.
Your warranty is valid at any authorized dealer location across the country — you’re never tied to us for service. But we’ll always be here when you want the support.