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FX 635 Laser
FX 635 · Stand-mounted scanner
Hands-free laser therapy for chronic pain.
The only low-level laser FDA-cleared for chronic low back pain, plantar fasciitis and nociceptive musculoskeletal pain — and it runs while you see the next patient.
The FX 635 gives patients with chronic pain a non-invasive, pain-free treatment option. Three line-generating red diodes on two independently adjustable arms target the pain center precisely; the body absorbs the light energy, mitochondria produce more ATP, and the cell’s own signaling does the rest. Because the laser stimulates rather than heats, the FX 635 relieves pain and reduces inflammation with no known side effects — and the hands-free protocol means it does so without consuming a provider.
- 3 × line-generating diodes
- Hands-free
- Non-thermal
- FDA-cleared K180197 · K190572
- No consumables
Only in the categoryThe FX Series are the only low-level lasers FDA-cleared to treat low back pain, plantar fasciitis and nociceptive musculoskeletal pain — on double-blind, placebo-controlled trials.
3
cleared indications: low back pain, plantar fasciitis, nociceptive musculoskeletal pain
3 ×
Class 2 line-generating red diodes on two adjustable arms
0
hands required once the protocol is running
25+
years medical professionals have trusted Erchonia’s low-level lasers
How it works
Stimulate the cell. Don’t heat it.
Patented laser diode arms, precisely positioned — photochemistry at the pain center, with nothing to monitor.
The FX 635 uses low-level laser technology and patented laser diode arms to precisely target pain centers. The body absorbs the light energy, which drives the cell’s mitochondria to produce more ATP. Because the laser stimulates rather than heats, it provides pain relief and reduces inflammation with no known side effects. Patients remain awake throughout and experience no burning, scarring or downtime — they resume the rest of their day as soon as the session is over.
| FX 635 | What it means in the room | |
|---|---|---|
| Diodes | Three Class 2, 17.25 mW line-generating diodes | Lines, not dots — coverage across the treatment area from three angles |
| Delivery | Two independent adjustable arms | Set the concentration and the geometry, then step away |
| Tissue interaction | Non-thermal | Photochemistry at low power — no heat, no monitoring, no cooldown |
| Workflow | Hands-free, touch-screen control | The protocol runs while staff see the next patient |
The FX 635 offers the industry’s most marketable procedure — a wide array of FDA clearances including plantar fasciitis, chronic low back pain and overall musculoskeletal pain, delivered hands-free.
Why clinics choose it
Why clinics choose the FX 635
The cleared indications your schedule is built around, on a platform that doesn’t need your hands.
01
The low back pain clearance
Chronic low back pain is the complaint that fills a musculoskeletal schedule — and the FX Series holds the category’s only clearance for it, established on a double-blind, placebo-controlled trial.
02
Hands-free throughput
Position the arms, start the protocol, see the next patient. One room and one staff member produce more in a day than a handheld ever could.
03
Trusted for over 25 years
Medical professionals have relied on Erchonia’s low-level lasers for over 25 years — and are increasingly turning to LLLT to manage a range of conditions more safely and effectively.
FDA indications for use
Indications for use (K180197 · K190572)
The Erchonia® FX-635 laser is indicated:
- As an adjunct to provide relief of minor chronic low back pain of musculoskeletal origin (K180197)
- As an adjunct to reducing chronic heel pain arising from plantar fasciitis (K180197)
- For the adjunctive use in providing temporary relief of nociceptive musculoskeletal pain (K190572)
Prescription use (21 CFR 801 Subpart D). Intended for medical professionals.
Specifications
Built for the clinic floor
The published specification.
| Configuration | (3) Class 2 17.25 mW line-generating diodes |
| Wavelength | 640 nm |
| Modulation | Variable |
| Weight | 65 lb (29.48 kg) |
| Height | 70 in (177.8 cm) average — adjustable |
| Arms | Two independent adjustable arms for the desired laser concentration |
| Mobility | 4 locking anti-static casters |
| Display | Full-color touch-screen control |
| Power | 100–240 VAC, 50–60 Hz |
| Chassis | Powder-coated aircraft aluminum |
| Housing and covers | Non-allergenic material, spray finished |
| Compliance | ISO 13485 medical device quality · ISO 14971 risk management · IEC 60825-1 laser safety · IEC 60601-1-2 EMC · IEC 60601-1 safety |
| Classification | FDA Laser Class 2 · FDA Device Class II · EU Device Class IIa, Laser Class II |
Hands-free
No burning. No scarring. No downtime.
Where it works
Where the FX 635 works
The stand-mounted platform for the visits that fill the schedule.
01
Chiropractic and PM&R
The scanner protocol runs while you adjust the next patient — cleared for the low back pain that anchors the schedule.
02
Podiatry and plantar fasciitis
The only low-level laser cleared for chronic heel pain from plantar fasciitis — a drug-free, injection-free option for the patient who has tried everything else.
03
Medical and integrative
Nociceptive musculoskeletal pain across the body, delivered hands-free inside the appointment you already booked.
Clinic · Patients · P&L
See the numbers for your practice.
Project revenue impact, break-even timelines and per-visit value increases from your own clinic volume.
Increased visit value
Laser sessions integrate into care plans, increasing per-visit revenue without increasing provider strain.
Improved case acceptance
Patients commit to conservative plans more readily when non-invasive technology is included.
Retention and reactivation
A reason to return — and a reason to bring back the patients who drifted.
In use
Three lines, precisely placed.
Patented diode arms bring the beam to the pain center.
The line
Compare the pain-management systems
Handheld or stand-mounted, red through violet — matched to how your clinic runs.
FX 405
Red + violet scanner · hands-free
The FX platform with violet added — four line-generating diodes, red and violet, for nociceptive musculoskeletal and postoperative pain.
GVL
520 nm green + 405 nm violet · handheld
The most energetic pairing in the line — the first and only FDA-cleared green/violet laser.
EVRL
405 nm violet + 635 nm red · handheld
Red and violet in one instrument — the workhorse handheld with violet’s anti-microbial properties alongside its therapeutic role.
Next step
Add the hands-free platform.
Low back pain, plantar fasciitis and musculoskeletal pain — cleared, hands-free, inside the visit. Tell us how your clinic runs.
Every system ships with onboarding and protocol support from our clinical team.